The pie chart illustrates the proportion of people who are occupied in different companies in town A and B from 1960 to 2010.
Overall, it is clear that the manufacturing sector was relatively higher in the initial year, but later, the service sector accounted for the largest share in City A. It is also worth noting that the manufacturing sector of City B showed a dominant trend, while the other means were much smaller.
In town A, manufacturing and sales fields demonstrated decreases in figures. Manufacturing started as the biggest group at 41% in 1960. The figure for those saw a noticeable fall to 20% in 2010. The percentage of people in the sales field also dropped from 30% in 1960 to 16% in 2010. The services field climbed sharply from 29% to 64 % between 1960 and 2010,with the remaining peak trend throughout the years.
By contrast, in town B the percentages of employment in services and sales branches experienced a rise over the period. Services workers stood at 10% at the beginning and then went up significantly by 15% in the final year.
The sales branch witnessed a slight growth from 20% to 22% across the given years. Lastly, the manufacturing branch declined considerably from 70% in 1960 to 53% at the end of the period.