40 decreased by 25% = 30
40 decreased by 25 percent is 30. Step-by-step solution with the formula and worked example.
40 decreased by 25% = 30
decreased by %
Solution: 40 decreased by 25 percent
Decrease = 25% × 40 = 10
Result = 40 − 10 = 30
Result = 40 − 10 = 30
Step-by-step explanation
- Find the decrease: 25% of 40 = 10.
- Subtract it from the original: 40 − 10 = 30.
- 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 40 × 0.75 = 30 in one step.
Frequently asked questions
40 decreased by 25 percent
40 decreased by 25% = 30.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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