399.2 is what percent of 1650 - 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 1650 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 1650, so we can write it down as 100%=1650.
4. We know, that x% equals 399.2 of the output value, so we can write it down as x%=399.2.
5. Now we have two simple equations:
1) 100%=1650
2) x%=399.2
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%=1650/399.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 399.2 is what percent of 1650

100%/x%=1650/399.2
(100/x)*x=(1650/399.2)*x       - we multiply both sides of the equation by x
100=4.1332665330661*x       - we divide both sides of the equation by (4.1332665330661) to get x
100/4.1332665330661=x
24.193939393939=x
x=24.193939393939

now we have:
399.2 is 24.193939393939% of 1650