Assuming 12 installments and the installment rate is 0.7, the repayment amount per installment is 451.67

The credit card installment principal is distributed in equal amounts

Each installment The principal is the installment amount/number of installments

The installment handling fee for each installment is equal to the installment amount * the installment handling rate

The repayment amount for each installment = the principal for each installment and the installment handling for each installment Fees

Specific to this case:

Principal amount per installment: 5000/12=416.67

Handling fee per installment: 5000*0.7=35

Repayment amount per period: 416.67 35=451.67