The line graph shows the number of sweaters sold by a shop from August to January in 2014.
- What was the average number of sweaters sold per month from August to January in 2014?
- The total number of sweaters sold for the same period from August to January in 2013 was 720. Find the percentage decrease in the total number of sweaters sold for the same period from 2013 to 2014
(a)
Total sweaters sold from August to January in 2014
= 24 + 43 + 79 + 47 + 92 + 21
= 306
Average sweaters sold from August to January in 2014
= 306 ÷ 6
= 51
(b)
Decrease in the number of sweaters sold
= 720 - 306
= 414
Percentage decrease in the total number of sweaters sold from 2013 to 2014
=
414720 x 100%
=
2340x 100%
= 57.5%
Answer(s): (a) 51; (b) 57.5%