Percentage change from 30 to 20

Instant answer with step-by-step formula

Percentage change from 30 to 20 = 33.333333% decrease
((20 − 30) ÷ 30) × 100 = -33.333333% (decrease)

Try a different calculation

Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 20 − 30 = -10
  3. Divide by old value: -10 ÷ 30 = -0.333333
  4. Multiply by 100: -33.333333% (decrease)

Related calculations

Percentage difference between 30 and 20Percentage change from 20 to 3030 is what percent of 20?20 is what percent of 30?

← Back to Percentage Calculator