500 decreased by 20% = 400
500 decreased by 20 percent is 400. Step-by-step solution with the formula and worked example.
500 decreased by 20% = 400
decreased by %
Solution: 500 decreased by 20 percent
Decrease = 20% × 500 = 100
Result = 500 − 100 = 400
Result = 500 − 100 = 400
Step-by-step explanation
- Find the decrease: 20% of 500 = 100.
- Subtract it from the original: 500 − 100 = 400.
- Shortcut: multiply by (1 − 20/100) = ×0.8.
Good to know
Shortcut: decreasing by 20% is the same as multiplying by 0.8 (that is 100% − 20%). So 500 × 0.8 = 400 in one step.
Frequently asked questions
500 decreased by 20 percent
500 decreased by 20% = 400.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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