871.5 is what percent of 1023 - 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 1023 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 1023, so we can write it down as 100%=1023.
4. We know, that x% equals 871.5 of the output value, so we can write it down as x%=871.5.
5. Now we have two simple equations:
1) 100%=1023
2) x%=871.5
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%=1023/871.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 871.5 is what percent of 1023

100%/x%=1023/871.5
(100/x)*x=(1023/871.5)*x       - we multiply both sides of the equation by x
100=1.1738382099828*x       - we divide both sides of the equation by (1.1738382099828) to get x
100/1.1738382099828=x
85.190615835777=x
x=85.190615835777

now we have:
871.5 is 85.190615835777% of 1023