How to add percentages together

Want to find out how to add percentages together? We've provided a step-by-step guide of how to add percentages together to teach you everything you need to know.

How to add percentages together

Step 1: Add 100% and the given percentage

So if we want to add 15% of 240, we first add 100 and 15.

Step 2: Change the percentage to a decimal

Change the percentage to a decimal by moving two decimal places to the left of the Number (base value).

Step 3: Multiply the decimal by the base value

Since the percentage is already changed to its decimal form, multiply the decimal by the base value.

That’s why if we add 15% of 240 to itself, the result would be 276.

Examples on adding percentages together

Q1) Chuck wants to increase his monthly savings by 25%. If he used to save $200 every month, how much he be saving for the next months?

To add 25% to 200, we first add 100 and 15: 100+15=115

Change the percentage to its decimal form by moving two decimal places to left of the percentage.

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Once we have the decimal form of the percentage, multiply it to the given base value.

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Hence, Chuck would need to save $250 the next months.