The three given pie charts demonstrate the changes in annual spending on different categories by a particular UK school in 1981,1991 and 2001.
Overall, in those years, yearly spending on some categories rose, while on other categories, annual spending decreased or varied over the years.
In 1981, the teachers’ salaries made up 40 percent of all spending throughout the year. Spending on resources and furniture contributed 15 percent of the school’s annual spending. The salaries of the school’s other workers constituted 28 percent of annual spending, and insurance did 2 percent.
In 1991, annual spending on teachers’ salaries rose to 50 percent, while spending throughout the year decreased to 22 percent and 5 percent for other workers’ salaries and furniture, respectively. Spending on resources had risen to 20 percent, while spending on insurance rose to 3 percent. In 2001, the salaries of teachers and other employees contributed 45 percent and 15 percent, respectively. The yearly spending on resources also dropped to 9 percent of all spending throughout the year. The amount of money spent on furniture contributed 23 percent, whereas insurance did 8 percent.
In conclusion, the annual spending on teachers’ salaries dominated over the years, and the spending on salaries of other employees decreased, while the share of yearly spending increased for insurance. Annual spending on other categories varied.