The line graph shows the number of vests sold by a shop from July to December in 2015.
- What was the average number of vests sold per month from July to December in 2015?
- The total number of vests sold for the same period from July to December in 2014 was 825. Find the percentage decrease in the total number of vests sold for the same period from 2014 to 2015
(a)
Total vests sold from July to December in 2015
= 52 + 38 + 29 + 86 + 42 + 83
= 330
Average vests sold from July to December in 2015
= 330 ÷ 6
= 55
(b)
Decrease in the number of vests sold
= 825 - 330
= 495
Percentage decrease in the total number of vests sold from 2014 to 2015
=
495825 x 100%
=
35x 100%
= 60%
Answer(s): (a) 55; (b) 60%