Indian Institute of Foreign Trade 2009 Solved Paper

Total automobile production in the year $2004=800+500+475=1775$
Total automobile production in the year $2005=700+550+450=170$0
Total automobile production in the year $2006=1025+675+475=2175$
Total automobile production in the year $2007=1200+650+475=2325$
Total automobile production in the year $2008=1250+600+350=2200$
We can see that production decreased only twice during the given period in the year 2005 and 2008
Hence, the percentage decrease in the year 2005 over the year $2004=\frac{1775-1700}{1775}\times 100=4.225$percent
Similarly, the percentage decrease in the year 2008 over the year $2007=\frac{2325-2200}{2325}\times 100=5.376$percent