Two months ago a bicycle shop sold 120 bicycles. Last month 138 bicycles were sold. Find the percent of increase in sales

Two months ago a bicycle shop was able to sold 120 bicycle. Then last month they were able to sold 138 bicycles already. Let’s find for the percentage that increases during those months. = > 138 - 120 = 18 - thus, during those months, they added 18 bicycle as sold. = > 120 is our 100% and 18 is our increased percentage = > 18 / 120 = 0.15 * 100 = 15% Thus, it increases 15%, let’s check = > 120 *.15 = 18.