The total amount of installment is the total amount of installment.

The number of periods, that is, how many months to return.

Principal of each installment = total installment amount/number of installments

Accredited installment principal = installment principal of each period * the number of accounted periods (that is, the installment principal appears on the bill for 5 times).

Bookkeeping installment principal = total installment amount-bookkeeping installment principal

For example, the total installment amount of the landlord is 6000 yuan, which is divided into 12 installments, which have been recorded in five installments.

Installment principal =6000/ 12=500 yuan.

Approved installment principal =500*5=2500 yuan.

The unrecorded installment principal =6000-2500=3500 yuan.

If the landlord has other questions, you can ask.