7.25 is what percent of 399 - 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 399 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 399, so we can write it down as 100%=399.
4. We know, that x% equals 7.25 of the output value, so we can write it down as x%=7.25.
5. Now we have two simple equations:
1) 100%=399
2) x%=7.25
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%=399/7.25
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 7.25 is what percent of 399

100%/x%=399/7.25
(100/x)*x=(399/7.25)*x       - we multiply both sides of the equation by x
100=55.034482758621*x       - we divide both sides of the equation by (55.034482758621) to get x
100/55.034482758621=x
1.8170426065163=x
x=1.8170426065163

now we have:
7.25 is 1.8170426065163% of 399