Math Tools

PercentageCalculator

Calculate percentages easily. Find percent increase, decrease, difference, and solve percentage problems for business and everyday use.

Percentage Calculation

Percentage Result

Answer20%
Decimal0.20

Additional Info

Increase Amount20
Decrease Amount20
Ratio1:5
Fraction1/5
Multiply by0.20

Common Formulas

  • % of number: (P/100) × N
  • % change: ((N-O)/O) × 100
  • What % is X of Y: (X/Y) × 100
  • Find original: V / (P/100)

Business Uses

  • Sales discounts
  • Price markups
  • Tax calculations
  • Profit margins

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