(a) The maximum part of the aggregate disposable earnings of an individual for any workweek which may be subjected to any one or more assignments of earnings for the payment of a debt or debts arising from one or more rent-to-own transactions may not exceed twenty-five percent of his disposable earnings for that week.
(b) As used in this section:
(1) "Disposable earnings" means that part of the earnings of an individual remaining after the deduction from those earnings of amounts required by law to be withheld; and