The line graph shows the number of shirts sold by a shop from September to February in 2016.
- What was the average number of shirts sold per month from September to February in 2016?
- The total number of shirts sold for the same period from September to February in 2015 was 960. Find the percentage decrease in the total number of shirts sold for the same period from 2015 to 2016
(a)
Total shirts sold from September to February in 2016
= 46 + 43 + 89 + 66 + 80 + 36
= 360
Average shirts sold from September to February in 2016
= 360 ÷ 6
= 60
(b)
Decrease in the number of shirts sold
= 960 - 360
= 600
Percentage decrease in the total number of shirts sold from 2015 to 2016
=
600960 x 100%
=
58x 100%
= 62.5%
Answer(s): (a) 60; (b) 62.5%