399900 is what percent of 2 - 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 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, so we can write it down as 100%=2.
4. We know, that x% equals 399900 of the output value, so we can write it down as x%=399900.
5. Now we have two simple equations:
1) 100%=2
2) x%=399900
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%=2/399900
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 399900 is what percent of 2

100%/x%=2/399900
(100/x)*x=(2/399900)*x       - we multiply both sides of the equation by x
100=5.0012503125781E-6*x       - we divide both sides of the equation by (5.0012503125781E-6) to get x
100/5.0012503125781E-6=x
19995000=x
x=19995000

now we have:
399900 is 19995000% of 2