Question

after the holiday season, the average number of costumers per day at the game galaxy store decreased from 612 to 450. find the percent of decrease

Answer 1

Simple, finding markdown, use these two formulas.

Markdown=Original-New
and
Percent Markdown= Markdown Amount/Original*100

So,

Markdown=612-450
M=162

Markdown%= 162/612*100
M%=0.2647*100
M%=26.5 (rounded)

Thus, there was a 26.5% decrease.