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400 decreased by 25% = 300

400 decreased by 25 percent is 300. Step-by-step solution with the formula and worked example.

400 decreased by 25% = 300
decreased by %

Solution: 400 decreased by 25 percent

Decrease = 25% × 400 = 100
Result = 400 − 100 = 300

Step-by-step explanation

  1. Find the decrease: 25% of 400 = 100.
  2. Subtract it from the original: 400 − 100 = 300.
  3. Shortcut: multiply by (1 − 25/100) = ×0.75.

Good to know

Shortcut: decreasing by 25% is the same as multiplying by 0.75 (that is 100% − 25%). So 400 × 0.75 = 300 in one step.

Frequently asked questions

400 decreased by 25 percent
400 decreased by 25% = 300.

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

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