10 Pa. Code § 13.23
(b) It is a banking practice, in calculating discount at a $6 per $100 per annum rate, to deduct the 6% (equivalent to the $6 charge) from 100%, thus arriving at a remainder of 94%. By dividing 94% into the maximum loan of $5,000, the face amount becomes $5,319.14 resulting in discount of $319.14. The following should illustrate clearly the results of calculating interest on a discount basis versus interest on an add-on basis:
(1) Discount basis.
| Principal | $5,000 |
| Plus Interest at 6% for 1 year on a discount basis | 319.14 |
| Plus Costs | 150 |
| Face amount of note | $5,469.14 |
| Less Interest and Costs | 469.14 |
| Net proceeds to borrower | $5,000 |
(2) Add-on basis.
| Principal | $5,000 |
| Plus Interest at 6% for 1 year | 300 |
| Plus Costs | 150 |
| Face amount of note | $5,450 |
| Less Interest and Costs | 450 |
| Net proceeds to borrower | $5,000 |
The provisions of this § 13.23 adopted by Secretary’s Letter ‘‘M,’’ dated March 21, 1968.