What is 0.66 percent of 615 - 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 615 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 615 is 100%, so we can write it down as 615=100%.
4. We know, that x is 0.66% of the output value, so we can write it down as x=0.66%.
5. Now we have two simple equations:
1) 615=100%
2) x=0.66%
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:
615/x=100%/0.66%
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 0.66% of 615

615/x=100/0.66
(615/x)*x=(100/0.66)*x       - we multiply both sides of the equation by x
615=151.51515151515*x       - we divide both sides of the equation by (151.51515151515) to get x
615/151.51515151515=x
4.059=x
x=4.059

now we have:
0.66% of 615=4.059