The four pie charts illustrate the proportion of employees in three different sectors in towns A and B in the years 1960 and 2010.
It can be seen that the percentage of individuals in town A working in the manufacturing and sales sectors went down in contrast to the services-related industry, which increased dramatically and became the largest figure in 2010. Meanwhile, a decrease was witnessed in the number of people working in manufacturing, remaining as the majority throughout the years and the figure for sales and services in town B.
In 1960, the proportion of individuals employed in services in town A almost three times as high as the figure in town B, 29% and 10% respectively. In town A, sales workers took up 30% in comparison with 20% in town B. Concurrently, the manufacturing was the largest proportion of the workforce in both towns, which accounted for 41% in town A and 70% in town B.
In 2010, the percentage of employees in services-related jobs witnessed a more than twofold to 64%, whereas the number in town B went up by 15% to 25%. Meanwhile, a drop was seen in the statistics of manufacturing in both towns A and B to 20% and 53% respectively. Finally, the salespeople fell by a half to 16% in town A in contrast to a slight increase to 22% town B.