What is the approximate percent decrease when a fish count goes down from 850 to 500?

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asked Aug 9, 2018 72.8k views

2 Answers

Yasuaki · Answer 1 · 2018-08-11T01:42:03+0000

so, the count went down from 850 to 500, or 350 units.

if we take the 850 to be the 100%, what is 350 in percentage off of it?

$\bf \begin{array}{ccllll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 850&100\\ 350&x \end{array} \implies \cfrac{850}{350}=\cfrac{100}{x}$

solve for "x".

What is the approximate percent decrease when a fish count goes down from 850 to 500?

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