# Subtract 3 percent from 25

### Add or Subtract a Percentage Calculator

Start Value Percent End Value
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## How to add a percentage to a number - Step-by-Step

To add a percentage (%) to a number, i.e., If you want to add a B percent to an amount, you can use the following formula:

End Value = A + (B100 × A )

Where: A represents the start or initial value, and B is the percent we want to add. See the example below:

### How to increase or add 3% to 25?

Plugging the values in the formula above:

End Value = 25 + (3 100 × 25)

End Value = 25 + (0.03 × 25)

End Value = 25 + (0.75)

## How to subtract a percentage from a number - Step by Step

To subtract a percentage (%) from a number, i.e., If you want to subtract a B percent from an amount, you can use the following formula:

End Value = A - (B100 × A )

Where: A represents the start or initial value, and B is the percent we want to subtract. See the example below:

### How to decrease or subtract 3% to 25?

Plugging the values in the formula above:

End Value = 25 - (3100 × 25 )

End Value = 25 - (0.03 × 25)

End Value = 25 - (0.75)