What is 7.69 percent of 7.8 - 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 7.8 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 7.8 is 100%, so we can write it down as 7.8=100%.
4. We know, that x is 7.69% of the output value, so we can write it down as x=7.69%.
5. Now we have two simple equations:
1) 7.8=100%
2) x=7.69%
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:
7.8/x=100%/7.69%
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 7.69% of 7.8

7.8/x=100/7.69
(7.8/x)*x=(100/7.69)*x       - we multiply both sides of the equation by x
7.8=13.003901170351*x       - we divide both sides of the equation by (13.003901170351) to get x
7.8/13.003901170351=x
0.59982=x
x=0.59982

now we have:
7.69% of 7.8=0.59982