The three pie charts below show the changes in annual spending by a particular UK school in 1981,1991 and 2001.
The pie graphs compare the difference of financial invests in some areas of a British school in 1981,1991 and 2001. It is clear that the money paid for teacher’s salaries ranked first in these three years, which were about 50% of the total spending.
In the year of 1991, it saw a slight decrease in expenditure of furniture and equipment from 15% in 1981 to 5%, which followed by an increase of 18% in the year of 2001. however, there was an opposite trend in the change of the money spent on the necessary resources like books, which went up a little from 15% in 1981 to 20% in 1991, then undergone a dropping to 9%.
The spending of insurance in the school remained stably during the three years’ time, although it rise to 8% compared to the percentage of 1981(3%). However, the trend of the portion of salaries paid for other employees was opposite with that of insurance, which undergone a stable decrease from 28% to 9%.
In sum, the expenditure of hiring tutors took the biggest part of the total spending(almost 50%), which had experienced only a slight change. By contrast, the fee of insuring took up a minor portion,which was under 10%.