California Code
ARTICLE 2 - Definitions
Section 1802.21.

1802.21. “Precomputed basis” means the determination of a finance charge by multiplying the original unpaid balance of the contract by a rate and multiplying that product by the number of payment periods elapsing between the date on which the finance charge begins to be assessed and the date of the last scheduled payment.

(Added by Stats. 1979, Ch. 805.)