The comparisons of three pie charts elucidate analysis from 1972, 1992, and 2012 the proportion of sold were five distinct children’s books by the book-retailer.
Looking from an overall perspective, the mostly sold books were adult fiction and children fiction during the given time while travel book was least sold observed.
Year 1972, adult friction, children friction, and biography book were sold at 20% while in year 1992 adult friction and children friction book were sold high as compared to the past, formal one was 25% and later one was 22%. 5% negatively impact on sold biography book. 2012, the adult friction book sold increased with 20% high as compared to the year 1992 where children friction book sold accounted at 25%. 8% book sold noticed only biography book.
Furthermore, taking travel book was sold 15% observed in year 1972 while 3% increased in 1992, in year 2012 it was 8% decreased. Respectively, 25% of book sold in other category in year 1972, 5% less sold observed in year 1992, only 12% book sold noticed in year 2012.