Percentage change from 99 to 20

Instant answer with step-by-step formula

Percentage change from 99 to 20 = 79.79798% decrease
((20 − 99) ÷ 99) × 100 = -79.79798% (decrease)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 20 − 99 = -79
  3. Divide by old value: -79 ÷ 99 = -0.79798
  4. Multiply by 100: -79.79798% (decrease)

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