The accounting records of Ohm Electronics show the following data.
Beginning inventory ...........................3,000 units at $5
Purchases ........................................8,000 units at $7
Sales .............................................9,400 units at $10
Determine cost of goods sold during the period under a periodic inventory system using
(a) The FIFO method,
(b) The LIFO method, and
(c) The average-cost method. (Round unit cost to three decimal places.)