$75 \textbackslash\% \cdot 50\textbackslash\% =37.5\textbackslash\%$  $1 -37.5\textbackslash\% = 62.5\textbackslash\%$ 
A shop advertises everything is "half price in today\textquotesingle s sale." In addition, a coupon gives a $25 \textbackslash\%$ discount on sale prices. Using the coupon, the price today represents what percentage off the original price? (adapted from 2012 AMC 8, Question \#8) 
Options:
(a) $$40\textbackslash\%$$ 
(b) $$42.5\textbackslash\%$$ 
(c) $$57.5\textbackslash\%$$ 
(d) $$62.5\textbackslash\%$$ 
(e) $$70\textbackslash\%$$ 