1,200 decreased by 90% = 120
1,200 decreased by 90 percent is 120. Step-by-step solution with the formula and worked example.
1,200 decreased by 90% = 120
decreased by %
Solution: 1,200 decreased by 90 percent
Decrease = 90% × 1200 = 1,080
Result = 1200 − 1,080 = 120
Result = 1200 − 1,080 = 120
Step-by-step explanation
- Find the decrease: 90% of 1,200 = 1,080.
- Subtract it from the original: 1,200 − 1,080 = 120.
- Shortcut: multiply by (1 − 90/100) = ×0.1.
Good to know
Shortcut: decreasing by 90% is the same as multiplying by 0.1 (that is 100% − 90%). So 1,200 × 0.1 = 120 in one step.
Frequently asked questions
1,200 decreased by 90 percent
1,200 decreased by 90% = 120.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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