10 decreased by 20% = 8
10 decreased by 20 percent is 8. Step-by-step solution with the formula and worked example.
10 decreased by 20% = 8
decreased by %
Solution: 10 decreased by 20 percent
Decrease = 20% × 10 = 2
Result = 10 − 2 = 8
Result = 10 − 2 = 8
Step-by-step explanation
- Find the decrease: 20% of 10 = 2.
- Subtract it from the original: 10 − 2 = 8.
- 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 10 × 0.8 = 8 in one step.
Frequently asked questions
10 decreased by 20 percent
10 decreased by 20% = 8.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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