The line graph shows the number of sweaters sold by a shop from September to February in 2014.
- What was the average number of sweaters sold per month from September to February in 2014?
- The total number of sweaters sold for the same period from September to February in 2013 was 608. Find the percentage decrease in the total number of sweaters sold for the same period from 2013 to 2014
(a)
Total sweaters sold from September to February in 2014
= 33 + 41 + 71 + 84 + 52 + 61
= 342
Average sweaters sold from September to February in 2014
= 342 ÷ 6
= 57
(b)
Decrease in the number of sweaters sold
= 608 - 342
= 266
Percentage decrease in the total number of sweaters sold from 2013 to 2014
=
266608 x 100%
=
716x 100%
= 43.75%
Answer(s): (a) 57; (b) 43.75%