400 decreased by 5% = 380
400 decreased by 5 percent is 380. Step-by-step solution with the formula and worked example.
400 decreased by 5% = 380
decreased by %
Solution: 400 decreased by 5 percent
Decrease = 5% × 400 = 20
Result = 400 − 20 = 380
Result = 400 − 20 = 380
Step-by-step explanation
- Find the decrease: 5% of 400 = 20.
- Subtract it from the original: 400 − 20 = 380.
- Shortcut: multiply by (1 − 5/100) = ×0.95.
Good to know
Shortcut: decreasing by 5% is the same as multiplying by 0.95 (that is 100% − 5%). So 400 × 0.95 = 380 in one step.
Frequently asked questions
400 decreased by 5 percent
400 decreased by 5% = 380.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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