The line graph shows the number of jackets sold by a shop from June to November in 2010.
- What was the average number of jackets sold per month from June to November in 2010?
- The total number of jackets sold for the same period from June to November in 2009 was 608. Find the percentage decrease in the total number of jackets sold for the same period from 2009 to 2010
(a)
Total jackets sold from June to November in 2010
= 88 + 46 + 99 + 85 + 82 + 56
= 456
Average jackets sold from June to November in 2010
= 456 ÷ 6
= 76
(b)
Decrease in the number of jackets sold
= 608 - 456
= 152
Percentage decrease in the total number of jackets sold from 2009 to 2010
=
152608 x 100%
=
14x 100%
= 25%
Answer(s): (a) 76; (b) 25%