Hi Michael, since we started with 1 of out every 20 people complaining, and then cut that number in half, we now have that 0.5 out of every 20 people complain.
0.5/ 20 = 0.025 = 2.5%
If 0.5 / 20 people is difficult to conceptualized, try to thinking of it like this...0.5 / 20 is the same as 1 / 40...so 1 / 40 people complain. 1 / 40 = 0.025 = 2.5%
Or, you can even think of it like this: 1 / 20 is the same as 2 / 40. After you cut the number of complains in half, it became 1 / 40...1 / 40 = 0.025 = 2.5%