The line graph shows the number of vests sold by a shop from February to July in 2012.
- What was the average number of vests sold per month from February to July in 2012?
- The total number of vests sold for the same period from February to July in 2011 was 600. Find the percentage decrease in the total number of vests sold for the same period from 2011 to 2012
(a)
Total vests sold from February to July in 2012
= 96 + 88 + 80 + 57 + 51 + 84
= 456
Average vests sold from February to July in 2012
= 456 ÷ 6
= 76
(b)
Decrease in the number of vests sold
= 600 - 456
= 144
Percentage decrease in the total number of vests sold from 2011 to 2012
=
144600 x 100%
=
625x 100%
= 24%
Answer(s): (a) 76; (b) 24%