Percentage change from 20 to 9

Instant answer with step-by-step formula

Percentage change from 20 to 9 = 55% decrease
((9 − 20) ÷ 20) × 100 = -55% (decrease)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 9 − 20 = -11
  3. Divide by old value: -11 ÷ 20 = -0.55
  4. Multiply by 100: -55% (decrease)

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