The line graph shows the number of skirts sold by a shop from January to June in 2016.
- What was the average number of skirts sold per month from January to June in 2016?
- The total number of skirts sold for the same period from January to June in 2015 was 600. Find the percentage decrease in the total number of skirts sold for the same period from 2015 to 2016
(a)
Total skirts sold from January to June in 2016
= 56 + 23 + 83 + 75 + 67 + 26
= 330
Average skirts sold from January to June in 2016
= 330 ÷ 6
= 55
(b)
Decrease in the number of skirts sold
= 600 - 330
= 270
Percentage decrease in the total number of skirts sold from 2015 to 2016
=
270600 x 100%
=
920x 100%
= 45%
Answer(s): (a) 55; (b) 45%