The pie charts illustrate the proportion of individuals working in three sectors – manufacturing, sales, and services – in town A and town B in 1960 and 2010.
Overall, manufacturing was the major sector in 1960 in both towns, while services was the smallest. It is also clear that in town A the percentage of workers working in services increased dramatically, while manufacturing decreased. Meanwhile, in town B manufacturing declined, though it was the dominant sector.
In town A, the proportion of people working in manufacturing accounted for 41% in 1960, while services made up 29%. In 2010, services saw a significant increase to 64%, whereas manufacturing declined noticeably to 20%. Sales comprised 30% in 1960, but this was followed by a marked drop to 16% in 2010.
As for town B, the percentage of workers working in manufacturing made up 70%, while services constituted 10% in 1960. However, services rose to 25%, while manufacturing fell to 53% in 2010. Sales showed little to no change (20% to 22% in 1960 and 2010, respectively).