9.99 is what percent of 149.99 - 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 149.99 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 149.99, so we can write it down as 100%=149.99.
4. We know, that x% equals 9.99 of the output value, so we can write it down as x%=9.99.
5. Now we have two simple equations:
1) 100%=149.99
2) x%=9.99
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%=149.99/9.99
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 9.99 is what percent of 149.99

100%/x%=149.99/9.99
(100/x)*x=(149.99/9.99)*x       - we multiply both sides of the equation by x
100=15.014014014014*x       - we divide both sides of the equation by (15.014014014014) to get x
100/15.014014014014=x
6.660444029602=x
x=6.660444029602

now we have:
9.99 is 6.660444029602% of 149.99