The manufacturing costs of Calico Industries for three months of the year are provided below: Total Cost Production (units) April $121,900 277,500 May 82,000 168,600 June 103,400 236,900 Using the high-low method, the variable cost per unit and the total fixed costs are a. $0.37 per unit and $19,225 b. $6.66 per unit and $1,923 c. $0.67 per unit and $9,613 d. $3.70 per unit and $1,923