Percentage Increase and Percentage Decrease Calculator
To help us understand percentage increase and decrease, think about the last time you watched your phone's last 1% of battery drain away…
This calculation actually uses the following percentage change formula:
Try it out yourself!
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So there are two different percentage change equations? 🤯
Ehh, sort of. The percentage change formula above comes from a formula we may be more familiar with:
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How to Find the Initial and Final Value of a Percentage Increase or Decrease
Step 1. Convert the percentage change to a decimal.
Step 2. Determine whether to add or subtract the change to/from 1.
- If we’re decreasing, we subtract.
- If we’re increasing, we add.
Step 3. Set up the equation.