Question

The price of an item yesterday was $80. Today, the price rose to $124. Find the percentage increase

Answer 1

55%.

Explanation:

1) the final percentage can be calculated if $124 is x% and 80 is 100%. Then

2)
`(80)/(100) =(124)/(x); \ = > \ x=(124*5)/(4)=155 \%`

3) the required increase is:

155-100=55%