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Scoresby Inc. tracks the number of units purchased and sold throughout each year but applies its inventory costing method at the end of the year, as if it uses a periodic inventory system. Assume its accounting records provided the following information at the end of the annual accounting period, December 31. Unit Transactions a. Inventory, Beginning For the year: b. Purchase, March 5 c. Purchase, September 19 d. Sale, April 15 (sold for $75 per unit) e. Sale, October 31 (sold for $78 per unit) f. Operating expenses (excluding income tax expense, $406,000 Units Cost 1,500 $30 7,500 31 3,500 33 2,400 6,500