The line graph shows the number of jackets sold by a shop from September to February in 2013.
- What was the average number of jackets sold per month from September to February in 2013?
- The total number of jackets sold for the same period from September to February in 2012 was 800. Find the percentage decrease in the total number of jackets sold for the same period from 2012 to 2013
(a)
Total jackets sold from September to February in 2013
= 86 + 36 + 32 + 80 + 81 + 45
= 360
Average jackets sold from September to February in 2013
= 360 ÷ 6
= 60
(b)
Decrease in the number of jackets sold
= 800 - 360
= 440
Percentage decrease in the total number of jackets sold from 2012 to 2013
=
440800 x 100%
=
1120x 100%
= 55%
Answer(s): (a) 60; (b) 55%