660.24 is what percent of 628.8 - 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 628.8 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 628.8, so we can write it down as 100%=628.8.
4. We know, that x% equals 660.24 of the output value, so we can write it down as x%=660.24.
5. Now we have two simple equations:
1) 100%=628.8
2) x%=660.24
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%=628.8/660.24
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 660.24 is what percent of 628.8

100%/x%=628.8/660.24
(100/x)*x=(628.8/660.24)*x       - we multiply both sides of the equation by x
100=0.95238095238095*x       - we divide both sides of the equation by (0.95238095238095) to get x
100/0.95238095238095=x
105=x
x=105

now we have:
660.24 is 105% of 628.8