80 decreased by 10% = 72
80 decreased by 10 percent is 72. Step-by-step solution with the formula and worked example.
80 decreased by 10% = 72
decreased by %
Solution: 80 decreased by 10 percent
Decrease = 10% × 80 = 8
Result = 80 − 8 = 72
Result = 80 − 8 = 72
Step-by-step explanation
- Find the decrease: 10% of 80 = 8.
- Subtract it from the original: 80 − 8 = 72.
- Shortcut: multiply by (1 − 10/100) = ×0.9.
Good to know
Shortcut: decreasing by 10% is the same as multiplying by 0.9 (that is 100% − 10%). So 80 × 0.9 = 72 in one step.
Frequently asked questions
80 decreased by 10 percent
80 decreased by 10% = 72.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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