The three pie charts show the changes in annual spending by a particular UK school.

The pie charts compare the different types of expenditure on a particular British school in three separate years.

It is clear that

the payment for teachers’ salaries always accounts for the biggest portion of the

overall

spending,

whereas

the fund was the least allocated for insurance over the period shown. In 1981, 40% of the money was spent on paying for the salary of teachers,

while

the figure peaked at 50% in 1991,

then

decreased to 45% after a decade.

By contrast

, the expenditure on paying other workers witnessed a sharp decline, in which the percentage was approximately halved, reducing from 28% to 15%. The trend for investing in resources was the same, which decreased by 6%,

although

it reached a peak at 20%.

However

, the trend for money spent on furniture and equipment was quite the opposite , which grew from 15% in 1981 to 23% 2 decades ago, but reached the bottom at 5% in 1991.

While

the spending on insurance increased fourfold, from 2% to 8%, it was still the smallest proportion on the whole.