Withholding Garnishment for Suppliers

If there is a supplier (Individual Contractor) for whom garnishment is to be withheld, how to do it? Specifically, when garnishments are to be withheld by percentage and only until certain amount and date.

Example: Amount up to $1120.00 should be held at 25% per payment for Supplier A.

Voucher 001 for $2000 will hold $500 and voucher 002 for $1800 will hold $450.

The next voucher 003 for $2500 should hold only $170 (1120-500-450=170) and not $625 which is 25% of 2500.

How to achieve this in PeopleSoft Financials?

Note: This is not a garnishment deduction for employee. This is for a 1099 supplier.