SOLUTION: Please help. An operation has a 10 percent scrap rate. As a result, 72 pieces per hour are produced. What is the potential increase in labor productivity that could be achieve

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Question 157523: Please help. An operation has a 10 percent scrap rate. As a result, 72 pieces per hour are produced. What is the potential increase in labor productivity that could be achieved by eliminating the scrap?
The answer is 11.1%, but I don't know how to they got it?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(1-.1)x=72
.9x=72
x=72/.9
x=80
80/72=1.1111 or 11.1 % increase.