Overview
If 50 represents 25% of a number, the original number is 200. This calculator helps you recover the whole from a part and its percentage, which is useful for discounts, taxes and results.
Formula
Original number = part ÷ (percentage ÷ 100).
How it works
Enter the part
The partial value you know.
Enter the percentage
The percentage that the part represents of the whole.
Read the original number
Divide the part by the decimal percentage.
Worked examples
Example 1: 50 is 25%
50 ÷ 0.25 = 200.
Example 2: 30 is 15%
30 ÷ 0.15 = 200.
Frequently asked questions
Can the percentage be greater than 100?
Yes, if the part is larger than the whole, such as 150 representing 150% of 100.
What if the percentage is negative?
A negative percentage represents a part in the opposite direction, and the result follows that sign.
Is this the inverse of the percentage calculator?
Yes. The percentage calculator finds a part of a whole, while this one finds the whole from a part.
This calculator is for educational and informational purposes only and is not a substitute for professional advice.