The pie chart presents the proportion of employees working in different sectors in A and B towns in 2 years 1960 and 2010.
Overall, in 1960 town A did fairly well with all works. In 2010 it showed activily growth in manufacturing area with 64 percentage. Sales in B town overweighted the other sectors,including manufacturing and services but all got reasonably proportional to 2010.
In 1960 in the town A services took 30% of labor force, manufacture took 29%, and 41% of people were working in sales area. As well as, in the town B there were more people working in sales and their percentage was 70,which surpassed town A. However, it gained lesser in other aspects,such as manufacture and services.
In 2010 increase in manufacture area is observed in town A and B. In the other sectors there are less workers, but town B still have more employees compared to the town A.
