"Vaughn Manufacturing had 510 units of Tank in its inventory at a cost of $3 each. It purchased, for $2770, 320 more units of Tank . Vaughn then sold 415 units at a selling price of $10 each, resulting in a gross profit of $2000. The cost flow assumption used by Vaughn"

Group of answer choices

cannot be determined from the information given.

is LIFO.

is FIFO.

is weighted average.