the pie charts below show

The pie charts compare the percentage of people tend to work in different jobs in town A and town B from 1960 to 2010 . Overall , it can be clearly seen that the figure of manufacturing was the highest in both town .

In the year 1960 , the percentage of manufacturing in Town A was 41% while sales and services just around 30% . It witnessed a change in 2010 , 20% was the proportion of manufacturing , by contrast with 1960 it declined a half . Moreover the percentage of services was increase significantly . Additionally , the figure of sales seem to be decreased dramatically .

On the other hand , 74% was the percentage of manufacturing in Town B in 1960 , nearly tripled than Town A while 10 % and 20% were sales and servives respectively . It saw a decreased in 2010 , the figure of manufucturing accounted for 53% . Moreover , the proportion of sales and services were prone to increased .