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The manufacturing costs of Calico Industries for 3 months of the year are as follows: Using the high-low method, the variable cost per unit and the total fixed costs are Round your intermediate calculations to two decimal places. a. $4.32 per unit and $4,422, respectively b. $0.43 per unit and $22,108, respectively c. $0.24 per unit and $44,216, respectively d. $2.40 per unit and $4,422, respectively