High-Low Method The manufacturing costs of Alex Industries for three months of the year are provided below. Using the high-low method, determine (a) the variable cost per unit and (b) the total fixed cost. Round all answers to the nearest whole dollar. a. Variable cost per unit $ b. Total fixed cost $ High-Low Method The manufacturing costs of Alex Industries for three months of the year are provided below. Using the high-low method, determine (a) the variable cost per unit and (b) the total fixed cost. Round all answers to the nearest whole dollar. a. Variable cost per unit $ b. Total fixed cost $