The price of an item yesterday was $80. Today, the price rose to $172. How do you find the percentage increase?
1 Answer
May 3, 2017
Explanation:
#"to calculate "color(blue)"percentage increase"# use.
#color(red)(bar(ul(|color(white)(2/2)color(black)(%" increase "="increase"/"original" xx100)color(white)(2/2)|)))#
#"increase in price "=$(172-80)=$92#
#"original price "=$80#
#rArr%" increase "=92/cancel(80)^4xxcancel(100)^5#
#color(white)(rArr%increasex)=23xx5=115%#
