Bar Charts - General Aptitude

Q1:

What is the percentage change in the overall sales turnover of the five companies together between 2001 - 2002 and 2002 - 2003 ?

A 17.21 %

B 14.68 %

C 12.67 %

D 21.24 %

ANS:B - 14.68 %

The required answer is 100 - percentage value of the fraction (Absolute change/first year's value).