69.12 is what percent of 768 - 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 768 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 768, so we can write it down as 100%=768.
4. We know, that x% equals 69.12 of the output value, so we can write it down as x%=69.12.
5. Now we have two simple equations:
1) 100%=768
2) x%=69.12
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%=768/69.12
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 69.12 is what percent of 768

100%/x%=768/69.12
(100/x)*x=(768/69.12)*x       - we multiply both sides of the equation by x
100=11.111111111111*x       - we divide both sides of the equation by (11.111111111111) to get x
100/11.111111111111=x
9=x
x=9

now we have:
69.12 is 9% of 768