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No of post cards ordered in 1 year = 3,160,080
Carrying Cost of each post card = $0.06
Therefore total Carrying cost of 3,160,080 post cards = No of post card X cost of each post card
= 3,160,080 X 0.06
Cost of each order of post card = $233
Therefore total cost of 8 times order = cost of each order X no of order
= $233 X 8
Therefore annual total costs of post card inventory = Total Carrying cost + Total cost of 8 times order
= $ 189,604.80 + $1,864
Annual total costs of post card inventory = $191,468.80
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