The Table given below presents the annual expenses(in thousands) on various heads made by a firm during 2006-2010. By how much percentage (correct up to two decimal places) is the average expenditure on purchases more than the average expenditure on rent?

14.87

Average expenditure on Purchase = \(\frac{23500+28500+38500+41000+50000 }{5}\)

= \(\frac{ 181500 }{5}\)

= 36300

Average expenditure on Rent = \(\frac{40000+34000+36000+20000+28000 }{5}\)

= \(\frac{ 158000 }{5}\)

= 31600 

Required percentage = \(\frac{36300 - 31600 }{31600}\) × 100

= \(\frac{47000 }{31600}\) × 100

= 14.87%