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Price oi an item yesterday was $125. Today, the price fell to $75. Find percentage decrease?

User Kylef
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1 Answer

4 votes
125 - 75, so, the difference is 50

how much is 50 in percentage, of 75? well, if we take 75 to be the 100%

then
\bf \begin{array}{ccllll} amount&\%\\ \textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\ 75&100\\ 50&x \end{array}\implies \cfrac{75}{50}=\cfrac{100}{x}

solve for "x"
User Omarrrio
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