Question

Suppose the number of cars sold by an auto manufacturer fell from 54.5 thousand in 2018 to 39.7 thousand in 2019. Calculate the percent decrease, rounded to the nearest tenth of a percent.

Answer 1

An auto manufacturer fell from 54.5 thousand in 2018 to 39.7 thousand in 2019

Subtract the sells:

54.5 - 39.7 = 14.8, which is the difference between 2018 to 2019

Then apply the rule of three

54.5 is the 100%

54.5 ------ 100%

14.8 --------- x

x =( 14.8 *100) / 54.5 = 27.155

Rounded to the nearest tenth of a percent

x = 27.2 is the percent decrease.