The pie charts compare and contrast data on the change in the rate of people performing in different sectors in town A and town B in 1960, 2010.
In general, the people who work in manufacturing sectors accounted for the highest in town B, while services and sales’ people were not occupied for a high proportion. At that time, the percentage of people working in the service sector in town A saw an upward trend during that period.
From 1960 to 2010, the services’ workers in town A experienced a significant twofold increase, from 29% to nearly 64%, whereas the sales and manufacturing workers saw a twofold decline, respectively, from 30% and 41% went down to 16% and 20%.
In town B, starting in 1960, the proportion of manufacturing workers had a moderate downward trend, from 70% to 53%. During 1960 and 2010, the ratio of people who work in services increased moderately from 10% to 25%. At that time, the percentage of people working in sales grew up slightly by 2%.