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100 decreased by 60% = 40

100 decreased by 60 percent is 40. Step-by-step solution with the formula and worked example.

100 decreased by 60% = 40
decreased by %

Solution: 100 decreased by 60 percent

Decrease = 60% × 100 = 60
Result = 100 − 60 = 40

Step-by-step explanation

  1. Find the decrease: 60% of 100 = 60.
  2. Subtract it from the original: 100 − 60 = 40.
  3. Shortcut: multiply by (1 − 60/100) = ×0.4.

Good to know

Shortcut: decreasing by 60% is the same as multiplying by 0.4 (that is 100% − 60%). So 100 × 0.4 = 40 in one step.

Frequently asked questions

100 decreased by 60 percent
100 decreased by 60% = 40.

How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.

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