Percentage change from 20 to 30

Instant answer with step-by-step formula

Percentage change from 20 to 30 = 50% increase
((30 − 20) ÷ 20) × 100 = 50% (increase)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 30 − 20 = 10
  3. Divide by old value: 10 ÷ 20 = 0.5
  4. Multiply by 100: 50% (increase)

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