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No of post cards ordered in 1 year = 4,219,610
Carrying Cost of each post card = $0.17
Therefore total Carrying cost of 4,219,610 post cards = No of post card X cost of each post card
= 4,219,610 X 0.17
Cost of each order of post card = $426
Therefore total cost of 6 times order = cost of each order X no of order
= $426 X 6
Therefore annual total costs of post card inventory = Total Carrying cost + Total cost of 6 times order
= $717,333.70 + $2,556
Annual total costs of post card inventory = $719,889.70
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