The calculation of cost by using Perpetual FIFO inventory method is $908.
Perpetual FIFO inventory method can be defined as a cost flow tracking system under which the first unit of inventory acquired is presumed to be the first unit consumed or sold. Perpetual FIFO inventory method can be determine by using the cost of your oldest inventory and multiply that cost by the amount of inventory sold. In the other side, to calculate LIFO (Last-in, First-Out) determine the cost of your most recent inventory and multiply it by the amount of inventory sold.
The calculation of cost by using Perpetual FIFO inventory method is:
The cost = (12.$24) + (12.$42) + (4*$29) = $908
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