1. The repayment amount of the first installment = 500 The amount to be repaid in each installment (the installment amount is 7,500 divided by the number of installments you have) Installment handling fee; the repayment amount of the second installment = the consumption amount of the previous installment per The installment handling fee will be charged on the amount due in each installment until the installments are repaid.

2. Assuming it is divided into three phases, then the principal payable in each phase is 2,500 yuan; assuming that after three phases, the handling fee for each phase is 0.5, then the handling fee for each phase is 2,500× 0.5=12.5 yuan; the three-phase handling fee is 37.5 yuan.

3. The repayment amount for the first period is 500 plus 2500 plus 12.5, which is 3012.5 yuan. The repayment amount for each subsequent period is 2500 plus 12.5, which is 2512.5 yuan. Yuan.