Percentage calculator
Five everyday percentage questions, answered as you type, including the one traders forget: how much you need to gain to recover a loss.
Percentage change
From one value to another.
+50.00%
Percent of
What is X% of a number?
%
375
Share of a total
X is what percent of Y?
25.00%
Increase or decrease
Apply a percentage to a value (negative to decrease).
%
80
Recovering from a loss
The gain needed to get back to where you started.
%
A 50% loss needs a 100% gain to recover.
+100.00%
Questions
How do I calculate percentage change?
(new − old) ÷ old × 100. A coin going from $40,000 to $60,000 is up 50%.
Why does a 50% loss need a 100% gain?
Because the gain is measured from the smaller amount. $100 falling 50% leaves $50, and $50 must double (rise 100%) to get back to $100.
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