Percentage change from 80 to 15

Instant answer with step-by-step formula

Percentage change from 80 to 15 = 81.25% decrease
((15 − 80) ÷ 80) × 100 = -81.25% (decrease)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 15 − 80 = -65
  3. Divide by old value: -65 ÷ 80 = -0.8125
  4. Multiply by 100: -81.25% (decrease)

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