The line graph shows the number of vests sold by a shop from March to August in 2015.
- What was the average number of vests sold per month from March to August in 2015?
- The total number of vests sold for the same period from March to August in 2014 was 864. Find the percentage decrease in the total number of vests sold for the same period from 2014 to 2015
(a)
Total vests sold from March to August in 2015
= 100 + 85 + 30 + 36 + 33 + 40
= 324
Average vests sold from March to August in 2015
= 324 ÷ 6
= 54
(b)
Decrease in the number of vests sold
= 864 - 324
= 540
Percentage decrease in the total number of vests sold from 2014 to 2015
=
540864 x 100%
=
58x 100%
= 62.5%
Answer(s): (a) 54; (b) 62.5%