On December 1, 2012, Cardinal Company, a garden retailer, purchased $20,000 of corn seed, terms 2/10, n/30, from Iowa Farm Company. Even though the discount period had expired, Sandi Kurtz subtracted the discount of $400 when she processed the documents for payment on December 15, 2012.
Did Sandi Kurtz behave in a professional manner by subtracting the discount?