49 is what percent of 612.5 - 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 612.5 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 612.5, so we can write it down as 100%=612.5.
4. We know, that x% equals 49 of the output value, so we can write it down as x%=49.
5. Now we have two simple equations:
1) 100%=612.5
2) x%=49
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%=612.5/49
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 49 is what percent of 612.5

100%/x%=612.5/49
(100/x)*x=(612.5/49)*x       - we multiply both sides of the equation by x
100=12.5*x       - we divide both sides of the equation by (12.5) to get x
100/12.5=x
8=x
x=8

now we have:
49 is 8% of 612.5