The line graph shows the number of vests sold by a shop from February to July in 2016.
- What was the average number of vests sold per month from February to July in 2016?
- The total number of vests sold for the same period from February to July in 2015 was 680. Find the percentage decrease in the total number of vests sold for the same period from 2015 to 2016
(a)
Total vests sold from February to July in 2016
= 44 + 44 + 45 + 40 + 46 + 87
= 306
Average vests sold from February to July in 2016
= 306 ÷ 6
= 51
(b)
Decrease in the number of vests sold
= 680 - 306
= 374
Percentage decrease in the total number of vests sold from 2015 to 2016
=
374680 x 100%
=
1120x 100%
= 55%
Answer(s): (a) 51; (b) 55%