The line graph shows the number of vests sold by a shop from October to March in 2012.
- What was the average number of vests sold per month from October to March in 2012?
- The total number of vests sold for the same period from October to March in 2011 was 1000. Find the percentage decrease in the total number of vests sold for the same period from 2011 to 2012
(a)
Total vests sold from October to March in 2012
= 33 + 20 + 76 + 67 + 57 + 83
= 336
Average vests sold from October to March in 2012
= 336 ÷ 6
= 56
(b)
Decrease in the number of vests sold
= 1000 - 336
= 664
Percentage decrease in the total number of vests sold from 2011 to 2012
=
6641000 x 100%
=
83125x 100%
= 66.4%
Answer(s): (a) 56; (b) 66.4%