7.9 is what percent of 63.8 - 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 63.8 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 63.8, so we can write it down as 100%=63.8.
4. We know, that x% equals 7.9 of the output value, so we can write it down as x%=7.9.
5. Now we have two simple equations:
1) 100%=63.8
2) x%=7.9
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%=63.8/7.9
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 7.9 is what percent of 63.8

100%/x%=63.8/7.9
(100/x)*x=(63.8/7.9)*x       - we multiply both sides of the equation by x
100=8.0759493670886*x       - we divide both sides of the equation by (8.0759493670886) to get x
100/8.0759493670886=x
12.382445141066=x
x=12.382445141066

now we have:
7.9 is 12.382445141066% of 63.8