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50 decreased by 10% = 45

50 decreased by 10 percent is 45. Step-by-step solution with the formula and worked example.

50 decreased by 10% = 45
decreased by %

Solution: 50 decreased by 10 percent

Decrease = 10% × 50 = 5
Result = 50 − 5 = 45

Step-by-step explanation

  1. Find the decrease: 10% of 50 = 5.
  2. Subtract it from the original: 50 − 5 = 45.
  3. 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 50 × 0.9 = 45 in one step.

Frequently asked questions

50 decreased by 10 percent
50 decreased by 10% = 45.

How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.

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