100 decreased by 30% = 70
100 decreased by 30 percent is 70. Step-by-step solution with the formula and worked example.
100 decreased by 30% = 70
decreased by %
Solution: 100 decreased by 30 percent
Decrease = 30% × 100 = 30
Result = 100 − 30 = 70
Result = 100 − 30 = 70
Step-by-step explanation
- Find the decrease: 30% of 100 = 30.
- Subtract it from the original: 100 − 30 = 70.
- Shortcut: multiply by (1 − 30/100) = ×0.7.
Good to know
Shortcut: decreasing by 30% is the same as multiplying by 0.7 (that is 100% − 30%). So 100 × 0.7 = 70 in one step.
Frequently asked questions
100 decreased by 30 percent
100 decreased by 30% = 70.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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