The pie charts

The pie charts compare the expenditure of a school in the UK in three different years 1981, 1991 and 2001.
Looking at the charts, it is clear that the proportion of teachers’ salaries occupied the highest consumption of all retails. In contrast, the figure for Insurance just presented the smallest cost on expenditure of the school.
There was a slight increase of Insurance from only 2% in 1981 to 8% in 2001. An opposite development was seen in the other workers’ salaries which reached 28% in1981 and declined 15% over two decades.
Meanwhile, the teachers’ wages oscillated dramatically. This figure registered 40% in 1981 then rose to 50% in 1991 but fell by 5% in 2001, finally. Similarly, the percentages for resources and furniture and equipment fluctuated drastically. The amount of money spending on resources reached its peak in 1991, at 20% and the expenditure in furniture and equipment was the highest in 2001, at 23%.