The image contains a 3 pie charts of the expenses of a library with 5 years gaps. Over the years there were fluctuations in the amount spent towards different types of costs, with large shift in precentage happening in upgrades.
Initially in 1995, renovating the library was the biggest cost, sitting at one third of the total, and in the next 5 years it rose to taking up 43% of it all. However, this trend didn’t follow in the following 5 years, as it decreased suddenly to less than a quarter at 17%. Similarly, staffs’ pay experienced increase of 5% in the first 5 years, but saw decline of 4% in the next 5 years.
In stark contrast, purchases of both new books and technology had initial fall, which was 5% for technology and 6% for books, then increased. Technology shot up to 27%, but books had slower rise from 14% to 25%. This shows library’s efforts to be modern by investing in their technology. Remarkably, miscellaneous costs didn’t have change in trend, as it was constantly reduced from 7% to 4% at first, and then from 4% to 3%.