577.5 is what percent of 830 - 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 830 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 830, so we can write it down as 100%=830.
4. We know, that x% equals 577.5 of the output value, so we can write it down as x%=577.5.
5. Now we have two simple equations:
1) 100%=830
2) x%=577.5
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%=830/577.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 577.5 is what percent of 830

100%/x%=830/577.5
(100/x)*x=(830/577.5)*x       - we multiply both sides of the equation by x
100=1.4372294372294*x       - we divide both sides of the equation by (1.4372294372294) to get x
100/1.4372294372294=x
69.578313253012=x
x=69.578313253012

now we have:
577.5 is 69.578313253012% of 830