What is 0.57 percent of 686 - 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 686 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 686 is 100%, so we can write it down as 686=100%.
4. We know, that x is 0.57% of the output value, so we can write it down as x=0.57%.
5. Now we have two simple equations:
1) 686=100%
2) x=0.57%
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:
686/x=100%/0.57%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 0.57% of 686

686/x=100/0.57
(686/x)*x=(100/0.57)*x       - we multiply both sides of the equation by x
686=175.43859649123*x       - we divide both sides of the equation by (175.43859649123) to get x
686/175.43859649123=x
3.9102=x
x=3.9102

now we have:
0.57% of 686=3.9102