How to calculate percentage in Excel - formula examples

In this tutorial, you will lean a quick way to calculate percentages in Excel, find the basic percentage formula and a few more formulas for calculating percentage increase, percent of total and more.

Calculating percentage is useful in many areas of life, whether it is restaurant tipping, reseller commission, your income tax or interest rate. Say, you've been lucky enough to get a 25% off promotion code on a new plasma TV. Is this a good deal? And how much will you eventually have to pay?

In this tutorial, we are going to explore a few techniques that will help you efficiently calculate percent in Excel and learn the basic percentage formulas that will take the guesswork out of your calculations.

Percentage basics

The term "per cent" is derived from the Latin per centum, meaning "by the hundred". As you probably remember from high school math class, a percentage is a fraction of 100 that is calculated by dividing the numerator by the denominator and multiplying the result by 100.

The basic percentage formula is as follows:

(Part/Whole)*100 = Percentage

For example, if you had 20 apples and you gave 5 to your friends, how much did you give, percentage wise? By performing a simple calculation =5/20*100 you get the answer - 25%.

This is how you normally calculate percentages in school and everyday life. Computing percentage in Microsoft Excel is even easier since Excel performs some operations for you automatically, in the background.

Regrettably, there is no universal Excel formula for percentage that would cover all possible scenarios. If you ask someone "Which percent formula do I use to get the result I want?", most likely, you will get an answer like "Well, that depends on what exactly result you want to achieve."

So, let me show you a few simple formulas for calculating a percent in Excel such as a percentage increase formula, a formula to get percentages of a total and more.

Basic Excel percentage formula

The basic formula to calculate percentage in Excel is this:

Part/Total = Percentage

If you compare it to the basic math formula for percentage, you will notice that Excel's percentage formula lacks the *100 part. When calculating a percent in Excel, you do not have to multiply the resulting fraction by 100 since Excel does this automatically when the Percentage format is applied to a cell.

And now, let's see how you can use the Excel percentage formula on real-life data. Suppose, you have the number of "Ordered items" in column B and "Delivered items" in column C. To find out the percentage of delivered products, perform the following steps:

  • Enter the formula =C2/B2 in cell D2, and copy it down to as many rows as you need.
  • Click the Percent Style button (Home tab > Number group) to display the resulting decimal fractions as percentages.
  • Remember to increase the number of decimal places if needed, as explained in Percentage tips.
  • Done! : )

The same sequence of steps shall be performed when using any other percentage formula in Excel.

In the following example, column D displays a rounded percent of delivered items, without any decimal places showing. Using the basic Excel percentage formula

Calculating percentage of total in Excel

In fact, the above example is a particular case of calculating percentages of a total. Now, let's investigate a few more examples that will help you make quick work of calculating a percent of a total in Excel on different data sets.

Example 1. The total is at the end of the table in a certain cell

A very common scenario is when you have a total in a single cell at the end of a table. In this case, the percentage formula will be similar to the one we've just discussed with the only difference that a cell reference in the denominator is an absolute reference (with $).The dollar sign fixes the reference to a given cell, so that it never changes no matter where the formula is copied.

For example, if you have some values in column B and their total in cell B10, you'd use the following formula to calculate percentages of the total:

=B2/$B$10

You use a relative cell reference to cell B2 because you want it to get changed when you copy the formula to other cells of column B. But you enter $B$10 as an absolute cell reference because you want to leave the denominator fixed on B10 when auto-filling the formula down to row 9.

Tip. To make the denominator an absolute reference, either type the dollar sign ($) manually or click the cell reference in the formula bar and press F4.

The screenshot below demonstrates the results returned by the formula, the Percentages of Total column is formatted as percentage with 2 decimal places showing. Calculating percentage of a total in Excel

Example 2. Parts of the total are in multiple rows

In the above example, suppose you have several rows for the same product and you want to know what part of the total is made by all orders of that particular product.

In this case, you can use the SUMIF function to add up all numbers relating to a given product first, and then divide that number by the total, like this:

=SUMIF(range, criteria, sum_range) / total

Given that column A contains all product names, column B lists corresponding quantities, cell E1 is the name of the product you are interested in, and the total is in cell B10, your real-life formula may look similar to this:

=SUMIF(A2:A9 ,E1, B2:B9) / $B$10 A formula to calculate a percentage of the total when items are in multiple rows

Naturally, you can put the product name directly in the formula, like this:

=SUMIF(A2:A9, "cherries", B2:B9) / $B$10

If you want to find out what part of the total a few different products make, add up the results returned by several SUMIF functions, and then divide that number by the total. For example, the following formula calculates the percent of cherries and apples:

=(SUMIF(A2:A9, "cherries", B2:B9) + SUMIF(A2:A9, "apples", B2:B9)) / $B$10

For more information about the SUM function, please check out the following tutorials:

How to calculate percent difference in Excel

Of all formulas for calculating percentage in Excel, a percent change formula is probably the one you would use most often.

Excel formula for percent increase / decrease

To calculate the percentage of difference between two values A and B, the generic formula is:

Percent Change = (B - A) / A

When applying this formula to real data, it is important that you correctly determine which value is A and which is B. For example, yesterday you had 80 apples and how you have 100, meaning that now you have 20 apples more than before, which is 25% increase. If you had 100 apples and now you have 80, your number of apples has reduced by 20, which is 20% decrease.

Considering the above, our Excel formula for percentage change takes the following shape:

(New Value - Old Value) / Old Value

And now, let's see how you can use this formula for calculating percent difference in your spreadsheets.

Example 1. Calculating percent difference between 2 columns

Suppose you have the last month prices in column B and this month prices in column C. Then your percent change formula takes this form:

=(C2-B2)/B2

To calculate the percent difference between two numbers correctly, carry out these steps.

  1. Enter the formula in any blank cell in row 2, say D2. This will output the result as a decimal number.
  2. Select the formula cell and click the Percent Style button on the Home tab to convert the decimal number to percentage.
  3. Drag the formula down to copy it to the below cells.

As the result, the formula calculates the percentage of change in this month (column C) comparted to last month (column B). Positive percentages that show percentage increase are formatted in usual black, while negative percentages (percent decrease) are formatted in red. To have this done automatically, set up a custom format for negative percentages as explained in this tip. Excel formula to calculate percent change between 2 columns

Example 2. Calculating percentage difference between two numbers

In case you have one column of numbers, say column C that lists weekly or monthly sales, you can calculate the percentage change between the previous week/month and the current one using this formula:

=(C3-C2)/C2

Where C2 and C3 are the numbers you are comparing.

Note. Please pay attention that you should skip the first row with data and put your percent difference formula in the 2nd cell, which is D3 in this example.

To display decimals as percentages, apply the percent format to the cells containing your formula, and you will get the following result: Excel formula to calculate percent change between rows

To calculate the percentage of change between a certain number and all other numbers, fix the address of that cell by using the $ sign, e.g. $C$2.

For instance, to calculates the percent increase / decrease for each month compared to January (C2), the formula in D3 is:

=(C3-$C$2)/$C$2

When copying the formula to the below cells, the absolute reference ($C$2) will remain the same, while the relative reference (C3) will change to C4, C5, and so on based on a relative position of the row where the formula is copied. Calculating a percentage change compared to January

For more formula examples, please see How to calculate percentage change in Excel.

Calculating amount and total by percentage

As you've just seen, calculating percentages in Excel is easy, and so is calculating amounts and totals if you know the percentage.

Example 1. Calculate amount by total and percentage

Suppose you are buying a new laptop for $950 and they charge 11% VAT on this purchase. The question is - how much do you have to pay on top of the net price? In other words, what is 11% of $950?

The following formula will help:

Total * Percentage = Amount

Assuming that the total value is in cell A2 and percent in B2, the above formula turns into a simple =A2*B2 and returns 104.50. Calculating amount by total and percentage

Remember, when you type a number followed by the percent sign (%) in Excel, the number is interpreted as a hundredth of its value. For example, 11% is actually stored as 0.11 and Excel uses this underlying value in all formulas and calculations.

In other words, the formula =A2*11% is equivalent to =A2*0.11. Naturally, you are free to use the decimal number corresponding to the percentage directly in a formula if this works better for your worksheets.

Example 2. Calculating total by amount and percentage

For example, you friend offered you his old computer for $400, which is 30% off the original price. You want to know what the original price was.

Since 30% is the discount, you deduct it from 100% first to know what percentage you actually have to pay (100% - 30% = 70%). Now you need the formula to calculate the original price, i.e. to find the number whose 70% equals 400.

The formula goes as follows:

Amount / Percentage = Total

Applied to real data, it may take any of the following shapes:

=A2/B2

or

=A2/0.7

or

=A2/70% Calculating the total by amount and percentage

Tip. To get an answer to a more difficult question - how to calculate the interest amount of a loan payment knowing an interest rate - check out the IPMT function.

How to increase / decrease a number by percentage

The holiday season is upon us and this indicates a change in your usual weekly spendings. You may want to consider different options to find out your optimum weekly allowance.

To increase an amount by a percentage, use this formula:

= Amount * (1 + %)

For example, to increase the value in cell A1 by 20%, the formula is:

=A1*(1+20%)

To decrease an amount by a percentage:

= Amount * (1 - %)

For instance, to reduce the value in cell A1 by 20%, the formula is:

=A1*(1-20%)

In our example, if A2 is your current expenditures and B2 is the percentage you want to increase or reduce that amount by, here are the formulas you'd enter in cell C2:

Increase by percentage:

=A2*(1+B2)

Reduce by percentage:

=A2*(1-B2) Excel formula to increase a number by percentage

How to increase / reduce an entire column by a percentage

Suppose, you have a column of numbers that you want to increase or reduce by a certain percent, and you want to have the updated numbers in the same column rather than add a new column with the formula.

Here are 5 quick steps to handle this task:

  1. Enter all the numbers you want to increase or decrease in some column, column B in this example.
  2. In an empty cell, enter one of the below formulas:

    Increase by percentage:

    =1+20%

    Reduce by percentage:

    =1-20% A formula to increase an entire column of numbers by a certain percentage

    Naturally, you are free to replace 20% in the above formulas with the percentage you want.

  3. Select the cell with the formula (C2 in our case) and copy it by pressing Ctrl + C.
  4. Select the range of cells you want to change, right click the selection and then click Paste Special… Use Paste Special to increase an entire column of numbers by percentage
  5. In the Paste Special dialog window, select Values under Paste, Multiply under Operation and click OK. In the Paste Special dialog window, select Values under Paste, Multiply under Operation.

And here's the result - all the numbers in column B are increased by 20%: All the numbers in column B are increased by 20%.

In the same fashion, you can multiply or divide a column of numbers by a certain percentage. Simply enter the desired percentage in an empty cell and follow the steps above.

This is how you calculate percentage in Excel. And even if working with percentages has never been your favorite kind of math, by using these basic percentage formulas you can get Excel to do the work for you. That's all for today, thank you for reading!

725 comments

  1. Respected Madam,
    Will you please how to find a formula in excel

    My product rate : 255000
    Net Discount Rate : 165000

    percentage : ?

    how to find how much discount less and percentage formula in excel

  2. Product Price on cash basis less 10% Discount
    if unit price is 1.65 i want to less 10% if i less this amount on excel sheet my remaining amount is 1.55% than i re-typed on my calculator i will received amount 1.48 tell me how do possible this accurate.

  3. 1. values In Excel, you have a list of values in cells A1 through A40. Explain in words or show the formula you would use to give the average of the.

  4. helo i want to know how to calculate ms excel step by step

  5. 10 205 7 75.00%
    13 205 7 75.00% a)what % of the sample
    29 202 9 71.40% weigh 172 lbs or less
    3 201 10 67.80%
    11 200 11 64.20% b)what % of the sample
    7 196 12 57.10% is 200 lbs or more
    14 196 12 57.10%
    25 195 14 50.00%
    26 195 14 50.00%
    19 193 16 46.40%
    5 191 17 42.80%
    12 174 18 39.20%
    21 172 19 35.70%
    24 165 20 32.10%
    22 163 21 28.50%
    9 162 22 25.00%
    23 161 23 21.40%
    18 159 24 17.80%
    1 157 25 14.20%
    6 156 26 7.10%
    28 156 26 7.10%
    16 152 28 3.50%
    20 150 29 0.00%

  6. in excel you have a list of values in cell A1 through A40 explain in words or show the formula you would use to give the average of the values.

    pls gv me d ans

  7. Good day every one.am a novice in excel. So pls I need your help on this question...you as a business manager is expected to manage and keep your clients records, client I'D, client name and amount credited are inputs from the user of the package while amount debited and balance are computed fields where amount debited is 10% of amount credited.use the the figure below and write the formulas for: Amount debited and balance when 10% of the amount credited is the amount debited and the balance is what remains after taking away the amount the amount debited from the amount credited...so pls I want to knw the formulas for amount debited and balance...... Thanks

  8. HELLO EVERY ONE
    Any one me teach me Excel classes

  9. Hi
    I need to make equation to convert percentage to points in excel Like that

    - 60% to 70% = 2 points

    - 71% to 100% = 3 points

    - 101% to 120% = 4 points

    - 121% to infinity = 5 points

    thanks for your help

    • Hello Beshoy,

      To display points corresponding to percentages, you can use a nested IF formula like this:

      =IF(A1>120%,5, IF(A1>100%, 4, IF(A1>70%, 3, IF(A1>=60%, 2,""))))

      • - first thing thanks for your help

        - second thing I need it but with Variable points not fixed

        Exp : form 60% to 70% = 2 points Maximum If It equal 70%

        If the percentage is 65 that means the points is equal part of the total points, but not all

        • Sorry, I an not sure I can follow you. The formula assigns 2 points for percentages between 60% to 70%, inclusive. Are you looking for something different?

          • Hi
            I need to make equation to convert percentage to points in excel Like that

            - From 60% to 70% = 2 points

            If the percentage between 60% & 70% the point will be displayed according to the percentage Like that

            1- IF the percentage less than 60% the point will equal 0 point

            2- IF the percentage = 60% the point will be equal 1.0 point

            3- IF the percentage = 65% the point will be equal 1.5 point, that means the is Variable not fixed

            4-IF the percentage = 68% the point will be equal 1.8 point

            Notes:

            - total range for the percentage is 10%
            - total point range is 2 Points

            thanks for your help

            • Hi

              Sorry I need your answer urgent

  10. Hi everyone..
    I have a query..How to calculate a series of percentage for whole excel in one go?? for eg. if column A(A1 TO A 30) deals with marks obtained by 30 students in exam and Column B shows the total marks. so is there a formula by which we can calculate the percentage of all students in one go and don't do (=A1/B1 setting percentage function)??

    • Hi Anoop,

      Sorry, I am not sure I can follow you. If =A1/B1 is the right formula for calculating the percentage of total for each student, and all you have to do is copy that formula down to other cells in the column. If the total is in some particular cell in column B, say B1, add absolute sell references like =$A1/$BS1 for the formula to copy correctly.

    • I need an Excel formula for this - if i charge 3% for every $10 i loan for 2 weeks, how much will I earn for $200 I loan for 2 weeks

  11. 100×6+1%=606
    How can i get this answer in excel.
    Tell me formula to get this answer.

  12. In Cell B14, calculate the Cost of Sales by multiplying the Sales Amount 60%. (Hint; In your formula, multiply the value in cell B6 times.6.) Copy the Formula to the range C14:E14.

    I'm sorry I am trying to figure this out. Like i know that there is a hint there but at the same time this is my first time doing this. Can someone help me asap before the night is over I would appreciate it

  13. Hello,

    I have to keep track of all the annual training for all the employees. The employess that have finished a training I mark the cell green, and for the training not yet completed I mark the cell red. I want to calculate percentage of green cells. How do I do that?

    Thank you very much!
    Iza

  14. You can use this formula for quick understand:-

    For eg.,

    Given amount is Rs. 18000. Interest 3%.

    Answer = (18000/100*3), is 540.

  15. Dear sir,
    please post easy percentage formula

  16. I have a total increase of 5%. Product A increased by 9%, Product B increased by 7%. How can I tell how much % Product A and B contributed to the overall increase?

  17. i have 14% but i want it to show as -84% what formula do i put it to make it show this?

    • Hi Vicki,

      You probably meant -14%? To reverse the sign, you can simply multiply the value by -1, e.g. =A1*-1

      If you want to reverse the sign in existing cells, you can use the Paste Special function:

      - Enter -1 into any blank cell, and then copy that cell.
      - Select the range of cells where you want to change the sign.
      - Right click the range, select Paste Special > Multiply.

      • sorry i meant i want it to say -86%

  18. Hi,
    if i have number 811 then how to calculate 5.20% out of them.
    Regards,

    Rajeev Mishra

    • Hi Rajeev,

      This is the general formula:
      Total * Percentage = Amount

      In your case, =811*5.2% or =811*0.052

      Either way, the result is 42.172.

  19. i need a percentage of pass + fail. I have 10 tests, 3 pass and 4 fail. What is the % that was tested?

    • Hi Sammy,

      You can use the following simple formula, replace values with corresponding cell references, and apply the percentage formal to the cell with the formula:
      =(3+4)/10

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