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Percent change from 12 to 18

12 → 18+50%

Going from 12 to 18 is an increase of 50%.

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Change from 12 to 18: +50%

Step by step

  1. 1Find the difference: 18 − 12 = 6.
  2. 2Divide by the starting value: 6 ÷ 12 = 0.5.
  3. 3Multiply by 100: 0.5 × 100 = +50%.

Other ways to get there

Why the order matters
Percent change always divides by the starting value. Going back from 18 to 12 is ≈ −33.33%, not −50%.
Percent difference
If neither value is the "start", use the percent difference: |18 − 12| ÷ average (15) × 100 = 40%.

Changes from 12

  • 12 → 6−50%
  • 12 → 9−25%
  • 12 → 10.8−10%
  • 12 → 13.2+10%
  • 12 → 15+25%
  • 12 → 18+50%
  • 12 → 24+100%

Frequently asked questions

What is the percentage increase from 12 to 18?

+50%. The difference 6 divided by 12, times 100.

What is the percent change from 18 to 12?

≈ −33.33%, because this time the change is divided by 18.

What is the percent difference between 12 and 18?

40%. The percent difference compares the gap with the average of both values.