921.7 is what percent of 1021 - 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 1021 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 1021, so we can write it down as 100%=1021.
4. We know, that x% equals 921.7 of the output value, so we can write it down as x%=921.7.
5. Now we have two simple equations:
1) 100%=1021
2) x%=921.7
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%=1021/921.7
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 921.7 is what percent of 1021

100%/x%=1021/921.7
(100/x)*x=(1021/921.7)*x       - we multiply both sides of the equation by x
100=1.1077357057611*x       - we divide both sides of the equation by (1.1077357057611) to get x
100/1.1077357057611=x
90.274240940255=x
x=90.274240940255

now we have:
921.7 is 90.274240940255% of 1021