SOLUTION: a portable typewriter cost $80 and was sold for $100. Find the rate of markups.

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Question 194467: a portable typewriter cost $80 and was sold for $100. Find the rate of markups.
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
a portable typewriter cost $80 and was sold for $100. Find the rate of markups.
.
The difference between what it costs and what it sold for is:
100-80 = $20
.
The rate of markup is then
20/80 * 100 = 0.25 * 100 = 25% markup