Handling fee for each installment = installment principal * installment interest rate = 25,000 * 0.6% =150 yuan.
Principal payable in each installment = installment principal/number of installments = 25,000/24 =1041.67 yuan.
Repayment amount per installment = handling fee per installment+principal payable per installment =150+1041.67 =11.67 yuan.