20 decreased by 20% = 16
20 decreased by 20 percent is 16. Step-by-step solution with the formula and worked example.
20 decreased by 20% = 16
decreased by %
Solution: 20 decreased by 20 percent
Decrease = 20% × 20 = 4
Result = 20 − 4 = 16
Result = 20 − 4 = 16
Step-by-step explanation
- Find the decrease: 20% of 20 = 4.
- Subtract it from the original: 20 − 4 = 16.
- 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 20 × 0.8 = 16 in one step.
Frequently asked questions
20 decreased by 20 percent
20 decreased by 20% = 16.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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