Percentage change from 9 to 15

Instant answer with step-by-step formula

Percentage change from 9 to 15 = 66.666667% increase
((15 − 9) ÷ 9) × 100 = 66.666667% (increase)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 15 − 9 = 6
  3. Divide by old value: 6 ÷ 9 = 0.666667
  4. Multiply by 100: 66.666667% (increase)

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