Percentage change from 800 to 100

Instant answer with step-by-step formula

Percentage change from 800 to 100 = 87.5% decrease
((100 − 800) ÷ 800) × 100 = -87.5% (decrease)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 100 − 800 = -700
  3. Divide by old value: -700 ÷ 800 = -0.875
  4. Multiply by 100: -87.5% (decrease)

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