2 The Purchase Requisition is signed by a supervisor. 90% (Click to s 3 The Purchase Order is signed by an authorized purchasing % agent. 90% (Click to s 4 Quantities on vendor's invoice agree with related receiving % report and purchase order, and invoice is mathematically 90% (Click to se correct. % 5 All documents in voucher packet have been stamped "paid". 90% 0 (Click to s