In company T the percentage increase is as follows:-
In 2005,
=180−148148×100=32180×100=21.62%
Similarly, the percentage increase
In 2006,
=212−180180×100=32180×100=17.77%
In 2007, =263−212212×100=51212×100=24.05%
In 2008, =310−263263×100=4700263=17.83%
In 2009, =396−310310×100=8600310=27.74%
Hence, in 2009 the percentage increases is the highest.