The three pie charts has been used to draw the conclusions of the percentage in five kinds of books sold between 1972 to 2012 period.
Overally,in the years ,the highest sales was adult fiction.But biography gradually decreases from 20% to 8% in 2012 while in children’s fiction there was a slight increase sales.
On the first chart of 1972 of the seller,others sales was the leading but that of the adult fiction,Biography and children fiction were equal at a rate of 20% each while that of travel was the lowest sale.
Taking a closer look at the second chart,in 1992 the greatest sales was adult fiction at 25%.Children’s fiction was at 22% followed by others at a rate of 20% which had a slight difference in percentage to that of travels while biography sales tailed at the rate of 15%.
Lastly,in the year 2012,adult fiction was the biggest sales at the of 45%.Children fiction seconded the rate of adult fiction at 25%.Others had a rate of 12% while that of travel had 10% hence the biography bottom at a rate of 8%.