2.55 is what percent of 2.8 - 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 2.8 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 2.8, so we can write it down as 100%=2.8.
4. We know, that x% equals 2.55 of the output value, so we can write it down as x%=2.55.
5. Now we have two simple equations:
1) 100%=2.8
2) x%=2.55
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%=2.8/2.55
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 2.55 is what percent of 2.8

100%/x%=2.8/2.55
(100/x)*x=(2.8/2.55)*x       - we multiply both sides of the equation by x
100=1.0980392156863*x       - we divide both sides of the equation by (1.0980392156863) to get x
100/1.0980392156863=x
91.071428571429=x
x=91.071428571429

now we have:
2.55 is 91.071428571429% of 2.8