Buskirk Construction buys on terms of 2/15, net 60 days. It does not take discounts, and it typically pays on time, 60 days after the invoice date. Net purchases amount to $650,000 per year. On average, how much "free" trade credit does the firm receive during the year? (Assume a 365-day year, and note that purchases are net of discounts.)
a. $31,253
b. $27,781
c. $31,788
d. $26,712
e. $22,705