89.99 is what percent of 80.88 - 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 80.88 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 80.88, so we can write it down as 100%=80.88.
4. We know, that x% equals 89.99 of the output value, so we can write it down as x%=89.99.
5. Now we have two simple equations:
1) 100%=80.88
2) x%=89.99
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%=80.88/89.99
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 89.99 is what percent of 80.88

100%/x%=80.88/89.99
(100/x)*x=(80.88/89.99)*x       - we multiply both sides of the equation by x
100=0.8987665296144*x       - we divide both sides of the equation by (0.8987665296144) to get x
100/0.8987665296144=x
111.26360039565=x
x=111.26360039565

now we have:
89.99 is 111.26360039565% of 80.88