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15 decreased by 75% = 3.75

15 decreased by 75 percent is 3.75. Step-by-step solution with the formula and worked example.

15 decreased by 75% = 3.75
decreased by %

Solution: 15 decreased by 75 percent

Decrease = 75% × 15 = 11.25
Result = 15 − 11.25 = 3.75

Step-by-step explanation

  1. Find the decrease: 75% of 15 = 11.25.
  2. Subtract it from the original: 15 − 11.25 = 3.75.
  3. Shortcut: multiply by (1 − 75/100) = ×0.25.

Good to know

Shortcut: decreasing by 75% is the same as multiplying by 0.25 (that is 100% − 75%). So 15 × 0.25 = 3.75 in one step.

Frequently asked questions

15 decreased by 75 percent
15 decreased by 75% = 3.75.

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

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