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75 decreased by 40% = 45

75 decreased by 40 percent is 45. Step-by-step solution with the formula and worked example.

75 decreased by 40% = 45
decreased by %

Solution: 75 decreased by 40 percent

Decrease = 40% × 75 = 30
Result = 75 − 30 = 45

Step-by-step explanation

  1. Find the decrease: 40% of 75 = 30.
  2. Subtract it from the original: 75 − 30 = 45.
  3. Shortcut: multiply by (1 − 40/100) = ×0.6.

Good to know

Shortcut: decreasing by 40% is the same as multiplying by 0.6 (that is 100% − 40%). So 75 × 0.6 = 45 in one step.

Frequently asked questions

75 decreased by 40 percent
75 decreased by 40% = 45.

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

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