I am trying to deduce the percentage of a number x that is within the range of a and b.
For example, we know that 7 is 7% of 100. Given, 0 - 100: 7 is equal to 7%. If the acceptable range was between 2 and 4, the value of 3 would be 50%. What is the mathematical equation to deduce this?
Note: I had at one point studied this, but cannot for the life of me remember the equation. Please help!
If your interval is $[a,b]$. The fraction is
$$\frac{x-a}{b-a}$$
Because you subtract $a$ off so that you are now starting at $0$