Fresh purchases done during the offer period Rs. 5,000 Unpaid balance brought forward from previous month Rs. 4,000 Total outstanding balance at the end of the month Rs. 9,000 Amount paid back (assume its Rs. 1,000 every month) Rs. 1,000 Unpaid balance carried forward to next month Rs. 8,000 Savings through a lower interest rate Average interest charges @ 3.40% per month** Rs. 221 Average interest charges @ 1.25% per month** Rs. 81 Interest saved in a month Rs. 140 Interest savings as a percentage (140/221) 63% ** Interest calculations are based on assumptions about: - Number of days the balances are held by the customer - Amount that is paid back before each due date