12 decreased by 15% = 10.2
12 decreased by 15 percent is 10.2. Step-by-step solution with the formula and worked example.
12 decreased by 15% = 10.2
decreased by %
Solution: 12 decreased by 15 percent
Decrease = 15% × 12 = 1.8
Result = 12 − 1.8 = 10.2
Result = 12 − 1.8 = 10.2
Step-by-step explanation
- Find the decrease: 15% of 12 = 1.8.
- Subtract it from the original: 12 − 1.8 = 10.2.
- Shortcut: multiply by (1 − 15/100) = ×0.85.
Good to know
Shortcut: decreasing by 15% is the same as multiplying by 0.85 (that is 100% − 15%). So 12 × 0.85 = 10.2 in one step.
Frequently asked questions
12 decreased by 15 percent
12 decreased by 15% = 10.2.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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