14,170 yuan.
The annual interest rate of most credit cards is between 13-20% annual interest rate. Here it is assumed to be 16.
Credit card interest is calculated using the compound interest calculation method, that is, compound interest on principal and interest.
According to the formula: overdue principal × (1 year interest rate) ^ number of overdue years = repayment amount
, calculate the repayment required for a credit card principal of 6,000 yuan that is overdue for 7 years:
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6000×(1 0.16)^7=6000×2.3617=14170 yuan.