The line graph shows the number of windbreakers sold by a shop from March to August in 2015.
- What was the average number of windbreakers sold per month from March to August in 2015?
- The total number of windbreakers sold for the same period from March to August in 2014 was 800. Find the percentage decrease in the total number of windbreakers sold for the same period from 2014 to 2015
(a)
Total windbreakers sold from March to August in 2015
= 82 + 39 + 46 + 30 + 83 + 50
= 330
Average windbreakers sold from March to August in 2015
= 330 ÷ 6
= 55
(b)
Decrease in the number of windbreakers sold
= 800 - 330
= 470
Percentage decrease in the total number of windbreakers sold from 2014 to 2015
=
470800 x 100%
=
4780x 100%
= 58.75%
Answer(s): (a) 55; (b) 58.75%