Forum Discussion
How do I make a comparison by percentage with 2 groups?
To compare two groups by percentage in Excel, you can create a simple percentage formula. Let's assume you have the data in two columns, say in columns A and B, and you want to calculate the percentage difference between the values in each row.
You can follow these steps:
- Create a New Column: Insert a new column where you want to display the percentage difference.
- Use the Percentage Formula: In the first cell of your new column (let's say it's in column C), enter the following formula:
=((B1-A1)/A1)*100
This formula calculates the percentage increase or decrease between the values in columns A and B. It subtracts the value in column A from the value in column B, divides the result by the value in column A, and then multiplies by 100 to get the percentage.
- Drag the Formula Down: After you enter the formula in the first cell of column C, click and drag the fill handle (a small square at the bottom right corner of the cell) down to apply the formula to all the rows you want to compare.
This will calculate the percentage difference between each corresponding pair of values in columns A and B and display the results in column C.
If you want to calculate the percentage difference in the reverse direction (i.e., from B to A), you can use a similar formula, but swap the positions of A and B in the formula:
=((A1-B1)/B1)*100
This formula will calculate the percentage difference from column B to column A.
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