The line graph shows the number of windbreakers sold by a shop from February to July in 2016.
- What was the average number of windbreakers sold per month from February to July in 2016?
- The total number of windbreakers sold for the same period from February to July in 2015 was 750. Find the percentage decrease in the total number of windbreakers sold for the same period from 2015 to 2016
(a)
Total windbreakers sold from February to July in 2016
= 72 + 54 + 63 + 99 + 98 + 52
= 438
Average windbreakers sold from February to July in 2016
= 438 ÷ 6
= 73
(b)
Decrease in the number of windbreakers sold
= 750 - 438
= 312
Percentage decrease in the total number of windbreakers sold from 2015 to 2016
=
312750 x 100%
=
52125x 100%
= 41.6%
Answer(s): (a) 73; (b) 41.6%