Percentage Calculation
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Find a percentage or calculate the percentage of given numbers and percentage values. Use percentage formulas to find percentages and unknowns in equations. Add or subtract a percentage from a number or solve equations.
Percentage calculation
Percentage calculation formula
There are many formulas for percentage problems. You can think of the most basic as X/Y = P x 100. All of the formulas below are mathematical variations of this formula.
Let’s examine the three basic percentage problems. X and Y are numbers and P is a percentage:
- Find P percent of X
- Find what percent of X is Y
- Find X if the percent P is Y
How to calculate percentage?
What is 20% of 60 dollars?
20% multiplied by 60%:
20% × 60 USD = (20/100) × 60 USD = 0.2 × 60 USD = 12 USD
12 dollars are what percent of 60 dollars?
12 USD divided by 60 USD and multiplied by 100%:
(12 USD / 60 USD) × 100% = 20%
12 dollars are 20% of what?
12 TL divided by 20%:
12 USD / 20% = (12 USD / 20) × 100 = 60 USD
What is the percent change from 40 dollars to 50 dollars?
The difference between $50 and $40 is divided by $40 and multiplied by 100%:
[($50 – $40] / $40] × 100% = 0.25 × 100% = 25%