1. We assume, that the number 200 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 200, so we can write it down as 100%=200.
4. We know, that x% equals 8 of the output value, so we can write it down as x%=8.
5. Now we have two simple equations:
1) 100%=200
2) x%=8
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%=200/8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 8 is what percent of 200
100%/x%=200/8
(100/x)*x=(200/8)*x - we multiply both sides of the equation by x
100=25*x - we divide both sides of the equation by (25) to get x
100/25=x
4=x
x=4
now we have:
8 is 4% of 200