The total remaining undeducted principal of the installment refers to the total outstanding principal of the consumer when using a credit card for installment consumption. This number can usually be seen on your credit card statement. For cardholders, having a clear understanding of the total remaining undeducted principal in installments will enable them to better plan their consumption plans and set repayment plans. At the same time, cardholders also need to clarify their credit limit and other detailed information so that they can better utilize the convenient consumption model of installment payment while avoiding excessive consumption. Therefore, for every credit card user, in-depth understanding of the relevant information about the total remaining undeducted principal of the installment will bring better results for personal consumption and financial management.