What is 12390 percent of 7 - 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 7 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 7 is 100%, so we can write it down as 7=100%.
4. We know, that x is 12390% of the output value, so we can write it down as x=12390%.
5. Now we have two simple equations:
1) 7=100%
2) x=12390%
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:
7/x=100%/12390%
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 12390% of 7

7/x=100/12390
(7/x)*x=(100/12390)*x       - we multiply both sides of the equation by x
7=0.0080710250201776*x       - we divide both sides of the equation by (0.0080710250201776) to get x
7/0.0080710250201776=x
867.3=x
x=867.3

now we have:
12390% of 7=867.3