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300 decreased by 50% = 150

300 decreased by 50 percent is 150. Step-by-step solution with the formula and worked example.

300 decreased by 50% = 150
decreased by %

Solution: 300 decreased by 50 percent

Decrease = 50% × 300 = 150
Result = 300 − 150 = 150

Step-by-step explanation

  1. Find the decrease: 50% of 300 = 150.
  2. Subtract it from the original: 300 − 150 = 150.
  3. Shortcut: multiply by (1 − 50/100) = ×0.5.

Good to know

Shortcut: decreasing by 50% is the same as multiplying by 0.5 (that is 100% − 50%). So 300 × 0.5 = 150 in one step.

Frequently asked questions

300 decreased by 50 percent
300 decreased by 50% = 150.

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

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