Percentage change from 18 to 15

Instant answer with step-by-step formula

Percentage change from 18 to 15 = 16.666667% decrease
((15 − 18) ÷ 18) × 100 = -16.666667% (decrease)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 15 − 18 = -3
  3. Divide by old value: -3 ÷ 18 = -0.166667
  4. Multiply by 100: -16.666667% (decrease)

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