20.5 is what percent of 328.2 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 328.2 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 328.2, so we can write it down as 100%=328.2.
4. We know, that x% equals 20.5 of the output value, so we can write it down as x%=20.5.
5. Now we have two simple equations:
1) 100%=328.2
2) x%=20.5
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=328.2/20.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 20.5 is what percent of 328.2

100%/x%=328.2/20.5
(100/x)*x=(328.2/20.5)*x       - we multiply both sides of the equation by x
100=16.009756097561*x       - we divide both sides of the equation by (16.009756097561) to get x
100/16.009756097561=x
6.2461913467398=x
x=6.2461913467398

now we have:
20.5 is 6.2461913467398% of 328.2