Rule: Generally, the difference between the fair value of purchases and the amount transferred is classified as a contribution. Choice "C" is correct. Oz would account for the $50,000 receipt from Ame Company as a contribution and as ticket sales revenue. Ticket sales revenue is equal to the fair value of the purchase ($25 × 100 tickets$2,500). Contribution revenue is equal to the difference between the amount contributed and the fair value of purchases given in the exchange ($50,000 − $2,500$47,500).Choice "b" is incorrect. The fair market value of the tickets purchased by the Ame Company is accounted for as ticket sales revenue.
Choice "d" is incorrect. The difference between the fair market value of the tickets sold to the Ame Company and the total transferred is contribution revenue, not ticket sales revenue.
Choice "a" is incorrect. The total amount of the transfer is not accounted for as ticket sale revenue, only the fair market value of the items sold.