The following pie-charts show the distribution of expenses over six different items A, B, C, D, E and F of a person for July and August 2012. She spent ₹ 27,000 in July and ₹ 30,000 in August, 2012
Read the charts and answer the questions
The sum of the difference between the expenditurers in july and August on items C and that of F as a percentage of the change in total expenditure between the two months is