(a) The retail installment contract must contain the names of the seller and the buyer, the place of business of the seller, the residence or other address of the buyer as named by the buyer, and a description or identification of the goods sold or to be sold or services furnished or rendered or to be furnished or rendered. The contract must also contain the following items:

(1) the cash sale price of each item of goods or services;

(2) the amount of the buyer's down payment, identifying the amounts paid in money and allowed for goods traded in;

(3) the difference between items (1) and (2);

(4) the aggregate amount included for insurance, if a separate identified charge is made for insurance, specifying the types of insurance and the terms of coverage;

(5) the aggregate amount of official fees;

(6) the principal balance, which is the sum of items (3), (4), (5), and (11);

(7) the amount or rate of the service charge;

(8) any other charges;

(9) the amount of the time balance owed by the buyer to the seller, which is the sum of items (6), (7), if (7) is stated in a dollar amount, (8), and (11);

(10) except as provided in (c) of this section, the maximum number of installment payments required and the amount of each installment and the due date of each payment necessary to pay the balance;

(11) if the retail installment contract is for the sale of a motor vehicle, the amount, if any, that the seller agrees to pay to discharge an outstanding obligation of the buyer under an existing motor vehicle agreement, loan, installment sales contract, or lease.

(b) Additional items may be included to explain the calculations involved in determining the balance to be paid by the buyer.

(c) If the installment payments other than the final payment are stated as a series of equal scheduled amounts and if the amount of the final installment payment does not substantially exceed the scheduled amount of each preceding installment payment, the maximum number of payments and the amount and due date of each payment need not be separately stated, and the amount of the scheduled final installment payment may be stated as the remaining unpaid balance. The due date of the first installment payment may be fixed by a day or date or may be fixed by reference to the date of the contract or to the time of delivery or installation.

(d) The contract is not required to state the items in (a) of this section in the order stated in (a) of this section.