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300 decreased by 85% = 45

300 decreased by 85 percent is 45. Step-by-step solution with the formula and worked example.

300 decreased by 85% = 45
decreased by %

Solution: 300 decreased by 85 percent

Decrease = 85% × 300 = 255
Result = 300 − 255 = 45

Step-by-step explanation

  1. Find the decrease: 85% of 300 = 255.
  2. Subtract it from the original: 300 − 255 = 45.
  3. Shortcut: multiply by (1 − 85/100) = ×0.15.

Good to know

Shortcut: decreasing by 85% is the same as multiplying by 0.15 (that is 100% − 85%). So 300 × 0.15 = 45 in one step.

Frequently asked questions

300 decreased by 85 percent
300 decreased by 85% = 45.

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

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