Two things important to answer the question:
Dec 07 2013 02:47 AM
1. Which data to take.
2. Calculate the Growth%.
Financial year for any company is from April 1, last year to March 31, current year.
So, the expenses for both the years are taken for the March 31 of that particular year.
Calculating Growth rate = [(t+1)value - (t)value]*100/[(t)value]
Error in approximation may also lead to incorrect answer as the options given are very close to the answer.