15 decreased by 25% = 11.25
15 decreased by 25 percent is 11.25. Step-by-step solution with the formula and worked example.
15 decreased by 25% = 11.25
decreased by %
Solution: 15 decreased by 25 percent
Decrease = 25% × 15 = 3.75
Result = 15 − 3.75 = 11.25
Result = 15 − 3.75 = 11.25
Step-by-step explanation
- Find the decrease: 25% of 15 = 3.75.
- Subtract it from the original: 15 − 3.75 = 11.25.
- Shortcut: multiply by (1 − 25/100) = ×0.75.
Good to know
Shortcut: decreasing by 25% is the same as multiplying by 0.75 (that is 100% − 25%). So 15 × 0.75 = 11.25 in one step.
Frequently asked questions
15 decreased by 25 percent
15 decreased by 25% = 11.25.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
Calculated instantly in your browser. Try your own numbers in the box above, or use the full Percentage Calculator.