The three given pie charts illustrate the variations in the annual expenditure of Springfield College from 1990 to 2010.
Overall, while the annual expenditure for technology and insurance witnessed an upward trend from 1990 to 2010, the opposite was true for other sectors. It is also evident that this school allocates the majority of its spending to paying staff.
In terms of expenses on salaries, in the first year, Teachers’ salaries made up 40% in 1990, which was much higher than that of workers (28%).While the data for teacher salaries witnessed an increase of 10% in 2000, the expense on workers’ salaries fell marginally to 22%. BY 2010 There was a slight decrease in both salaries for teachers and other workers to 45% and 15%, respectively.
Regarding the amount of money allocated to others, the proportion of expenses on technology accounted for 1% in 1990 before increasing to 20% in 2010. Despite some fluctuation in 2000, the figure for furniture & equipment and books witnessed a decrease from 14% and 15% in 1990 to 3% and 9% in 2010, respectively. The expenditure on insurance constituted at only 2% in 1990 before rising to 8% in 2010.