The calculation formula for installment repayment of Pudong Development Credit Card is as follows: Installment interest = Installment amount * Installment rate * Number of installments. Repayment per period = interest per period + principal per period.

The installment numbers of Pudong Development Credit Card include: 3 issues (0.9%), 6 issues (0.78%), 9 issues (0.73%), 12 issues (0.74%), 15 issues (0.75%), 18 period (0.76%) and 24 periods (0.76%).

For example: Suppose the user borrows 10,000 yuan and repays it in 6 installments, then the total interest generated by the 10,000 yuan installment is 10,000*0.78%*6=468 yuan. The amount payable per period is 1,745 yuan.