What is 0.28 percent of 12.3 - 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 12.3 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 12.3 is 100%, so we can write it down as 12.3=100%.
4. We know, that x is 0.28% of the output value, so we can write it down as x=0.28%.
5. Now we have two simple equations:
1) 12.3=100%
2) x=0.28%
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:
12.3/x=100%/0.28%
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 0.28% of 12.3

12.3/x=100/0.28
(12.3/x)*x=(100/0.28)*x       - we multiply both sides of the equation by x
12.3=357.14285714286*x       - we divide both sides of the equation by (357.14285714286) to get x
12.3/357.14285714286=x
0.03444=x
x=0.03444

now we have:
0.28% of 12.3=0.03444