Percentage change from 30 to 10

Instant answer with step-by-step formula

Percentage change from 30 to 10 = 66.666667% decrease
((10 − 30) ÷ 30) × 100 = -66.666667% (decrease)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 10 − 30 = -20
  3. Divide by old value: -20 ÷ 30 = -0.666667
  4. Multiply by 100: -66.666667% (decrease)

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