7 percent of 21 Pounds
Percentage Calculator
Using this tool you can find any percentage in three ways. So, we think you reached us looking for answers like: 1) What is 7 percent (%) of 21? 2) 7 is what percent of 21? Or may be: 7 percent of 21 Pounds?
See the solutions to these problems below.
How to work out percentages - Step by Step
Here are the solutions to the questions stated above:
1) What is 7% of 21?
Always use this formula to find a percentage:
% / 100 = Part / Whole replace the given values:
7 / 100 = Part / 21
Cross multiply:
7 x 21 = 100 x Part, or
147 = 100 x Part
Now, divide by 100 and get the answer:
Part = 147 / 100 = 1.47
2) What is 7 out of 21?
This question is equivalent to: "7 is what percent of 21?" Or What percent 7 is out of 21?
Use again the same percentage formula:
% / 100 = Part / Whole replace the given values:
% / 100 = 7 / 21
Cross multiply:
% x 21 = 7 x 100
Divide by 21 to get the percentage:
% = (7 x 100) / 21 = 33.333333333333%
A shorter way to calculate x out of y
You can easily find 7 is out of 21, in one step, by simply dividing 7 by 21, then multiplying the result by 100. So,
7 is out of 21 = 7/21 x 100 = 33.333333333333%
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