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10 increased by 80% = 18

10 increased by 80 percent is 18. Step-by-step solution with the formula and worked example.

10 increased by 80% = 18
increased by %

Solution: 10 increased by 80 percent

Increase = 80% × 10 = 8
Result = 10 + 8 = 18

Step-by-step explanation

  1. Find the increase: 80% of 10 = 8.
  2. Add it to the original: 10 + 8 = 18.
  3. Shortcut: multiply by (1 + 80/100) = ×1.8.

Good to know

Shortcut: increasing by 80% is the same as multiplying by 1.8 (that is 100% + 80%). So 10 × 1.8 = 18 in a single step — handy for adding tax, interest or a markup.

Frequently asked questions

10 increased by 80 percent
10 increased by 80% = 18.

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

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