The line graph shows the number of sweaters sold by a shop from June to November in 2016.
- What was the average number of sweaters sold per month from June to November in 2016?
- The total number of sweaters sold for the same period from June to November in 2015 was 750. Find the percentage decrease in the total number of sweaters sold for the same period from 2015 to 2016
(a)
Total sweaters sold from June to November in 2016
= 67 + 86 + 55 + 45 + 98 + 39
= 390
Average sweaters sold from June to November in 2016
= 390 ÷ 6
= 65
(b)
Decrease in the number of sweaters sold
= 750 - 390
= 360
Percentage decrease in the total number of sweaters sold from 2015 to 2016
=
360750 x 100%
=
1225x 100%
= 48%
Answer(s): (a) 65; (b) 48%