What is the percentage change from 50 to 100?

100% increase

From 50 to 100 is a 100% increase.

How it is worked out

Subtract the old value from the new one, divide by the OLD value, then multiply by 100. Dividing by the new value is the usual mistake.

100 − 50 = 50, and 50 ÷ 50 × 100 = 100%

Try your own numbers

Answer100% increase

Open the full percentage calculator for every other form.

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Questions

What is the percentage change from 50 to 100?
From 50 to 100 is a 100% increase. 100 − 50 = 50, and 50 ÷ 50 × 100 = 100%.
How do you work this out?
Subtract the old value from the new one, divide by the OLD value, then multiply by 100. Dividing by the new value is the usual mistake.
Can I use other numbers?
Yes — the calculator on this page takes any two numbers, and the full percentage calculator covers every form: percentage of a number, one number as a percentage of another, percentage change, increase and decrease.