Help me correct my writing task 1, please. Thank you so much.

Topic :The charts show the percentage of people working in different sectors in town
A and B in two years 1960 and 2010. Summarise the information by selecting and
reporting the main features and make comparisons where relevant.

The pie charts show the distribution of employment in town A and town B in 1960
and 2010. In general, people working in town A mainly chose the manufacturing
sector to worked. While in 1960, there was the highest proportion of employment
who working for the sales sector in town B.
In 1960, 41% of employment in town A had sales-related jobs, meanwhile the
percentage of workers worked in the manufacturing and services sectors had just at
30% each one. In contrast, at 70%, a vast majority of the proportion of sales workers
in town B, which by far higher than the proportion of those working at manufacturing
and services sectors, at 10% and 20% respectively.
In 2010, the percentage of manufacturing workers in town A increased from 29% to
64% while the figure for other sectors decreased to 20%. In town B, 1 in 2 of people
working in the sales sector whereas the proportion of manufacturing and service
workers grew to 25% and 22% respectively.