678.7 is what percent of 998 - 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 998 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 998, so we can write it down as 100%=998.
4. We know, that x% equals 678.7 of the output value, so we can write it down as x%=678.7.
5. Now we have two simple equations:
1) 100%=998
2) x%=678.7
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%=998/678.7
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 678.7 is what percent of 998

100%/x%=998/678.7
(100/x)*x=(998/678.7)*x       - we multiply both sides of the equation by x
100=1.4704582289671*x       - we divide both sides of the equation by (1.4704582289671) to get x
100/1.4704582289671=x
68.006012024048=x
x=68.006012024048

now we have:
678.7 is 68.006012024048% of 998