15.75 is what percent of 320 - 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 320 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 320, so we can write it down as 100%=320.
4. We know, that x% equals 15.75 of the output value, so we can write it down as x%=15.75.
5. Now we have two simple equations:
1) 100%=320
2) x%=15.75
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%=320/15.75
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 15.75 is what percent of 320

100%/x%=320/15.75
(100/x)*x=(320/15.75)*x       - we multiply both sides of the equation by x
100=20.31746031746*x       - we divide both sides of the equation by (20.31746031746) to get x
100/20.31746031746=x
4.921875=x
x=4.921875

now we have:
15.75 is 4.921875% of 320