The line graph shows the number of coats sold by a shop from February to July in 2016.
- What was the average number of coats sold per month from February to July in 2016?
- The total number of coats sold for the same period from February to July in 2015 was 640. Find the percentage decrease in the total number of coats sold for the same period from 2015 to 2016
(a)
Total coats sold from February to July in 2016
= 82 + 53 + 45 + 96 + 51 + 81
= 408
Average coats sold from February to July in 2016
= 408 ÷ 6
= 68
(b)
Decrease in the number of coats sold
= 640 - 408
= 232
Percentage decrease in the total number of coats sold from 2015 to 2016
=
232640 x 100%
=
2980x 100%
= 36.25%
Answer(s): (a) 68; (b) 36.25%