2.5 is what percent of 20.7 - 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 20.7 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 20.7, so we can write it down as 100%=20.7.
4. We know, that x% equals 2.5 of the output value, so we can write it down as x%=2.5.
5. Now we have two simple equations:
1) 100%=20.7
2) x%=2.5
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%=20.7/2.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 2.5 is what percent of 20.7

100%/x%=20.7/2.5
(100/x)*x=(20.7/2.5)*x       - we multiply both sides of the equation by x
100=8.28*x       - we divide both sides of the equation by (8.28) to get x
100/8.28=x
12.07729468599=x
x=12.07729468599

now we have:
2.5 is 12.07729468599% of 20.7