1. We assume, that the number 96 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 96, so we can write it down as 100%=96. 4. We know, that x% equals 17.76 of the output value, so we can write it down as x%=17.76. 5. Now we have two simple equations: 1) 100%=96 2) x%=17.76 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%=96/17.76 6. Now we just have to solve the simple equation, and we will get the solution we are looking for. 7. Solution for 17.76 is what percent of 96 100%/x%=96/17.76 (100/x)*x=(96/17.76)*x - we multiply both sides of the equation by x 100=5.40540540541*x - we divide both sides of the equation by (5.40540540541) to get x 100/5.40540540541=x 18.5=x x=18.5 now we have: 17.76 is 18.5% of 96