The line graph shows the number of windbreakers sold by a shop from April to September in 2015.
- What was the average number of windbreakers sold per month from April to September in 2015?
- The total number of windbreakers sold for the same period from April to September in 2014 was 704. Find the percentage decrease in the total number of windbreakers sold for the same period from 2014 to 2015
(a)
Total windbreakers sold from April to September in 2015
= 52 + 71 + 90 + 84 + 75 + 24
= 396
Average windbreakers sold from April to September in 2015
= 396 ÷ 6
= 66
(b)
Decrease in the number of windbreakers sold
= 704 - 396
= 308
Percentage decrease in the total number of windbreakers sold from 2014 to 2015
=
308704 x 100%
=
716x 100%
= 43.75%
Answer(s): (a) 66; (b) 43.75%