The line graph shows the number of shirts sold by a shop from May to October in 2017.
- What was the average number of shirts sold per month from May to October in 2017?
- The total number of shirts sold for the same period from May to October in 2016 was 800. Find the percentage decrease in the total number of shirts sold for the same period from 2016 to 2017
(a)
Total shirts sold from May to October in 2017
= 64 + 24 + 34 + 42 + 59 + 29
= 252
Average shirts sold from May to October in 2017
= 252 ÷ 6
= 42
(b)
Decrease in the number of shirts sold
= 800 - 252
= 548
Percentage decrease in the total number of shirts sold from 2016 to 2017
=
548800 x 100%
=
137200x 100%
= 68.5%
Answer(s): (a) 42; (b) 68.5%