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Percent Change Calculator

Calculate the percentage change between two values for prices, growth, and comparisons.

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Formula: × 1 =
How to use this converter
  1. 1Formula: (New − Old) ÷ Old × 100.
  2. 2Example: from $80 to $100 = (100−80) ÷ 80 × 100 = 25% increase.
  3. 3For a decrease: from $100 to $80 = (80−100) ÷ 100 × 100 = -20%.
Common questions
((New − Old) ÷ Old) × 100. Positive = increase. Negative = decrease.
$50 × 1.20 = $60.
Related converters
Basis Points to PercentAPR to Monthly Rate