Nirmion
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EVERYDAY MATH / OLD TO NEW

Percentage Increase Calculator

Compare an original and new value to see the signed difference, percentage increase or decrease, and multiplier.

  • 01 Calculated in this tab
  • 02 Values stay in this browser tab
  • 03 Use boundary

Conversion input

Known value

Filter by unit name, symbol, or code. Your current selections remain available.

Preparing the calculator...

Use boundary

Calculation path

Nirmion subtracts the original value from the new value, divides that difference by the original, and keeps the sign so decreases are not presented as increases.

Calculation path

Percentage change = (new value - original value) / original value x 100.

What you provide

What you provide

  • A non-zero original value
  • The comparable new value using the same unit and basis

What you receive

What you receive

  • Percentage increase or decrease
  • Signed numerical difference
  • New value as a multiple of the original

Use boundary

Choose the maximum decimal places shown. This does not increase source accuracy.

A move from 20% to 25% is a 5 percentage-point increase but a 25% relative increase. Enter 20 and 25 here only when you want the relative change.