678.72 is what percent of 756 - 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 756 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 756, so we can write it down as 100%=756.
4. We know, that x% equals 678.72 of the output value, so we can write it down as x%=678.72.
5. Now we have two simple equations:
1) 100%=756
2) x%=678.72
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%=756/678.72
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 678.72 is what percent of 756

100%/x%=756/678.72
(100/x)*x=(756/678.72)*x       - we multiply both sides of the equation by x
100=1.1138613861386*x       - we divide both sides of the equation by (1.1138613861386) to get x
100/1.1138613861386=x
89.777777777778=x
x=89.777777777778

now we have:
678.72 is 89.777777777778% of 756