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How to Find the Percent Increase or Decrease

Published: Oct 19, 2026 | Updated: Oct 19, 2026 | About (Japanese)

Key points
  • Choose "Change"
  • Enter before and after
  • Read the %

Steps

  1. Choose "Change from A to B (%)" in Calculate Percentages, Discounts and % Change.
  2. Enter the earlier number in A and the later in B.
  3. A plus sign means an increase, a minus sign a decrease.

Formula

(B − A) ÷ A × 100.

Use "Calculate Percentages, Discounts and % Change" (free)

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