High-Low Method Ziegler Inc. has decided to use the high-low method to estimate the total cost and the fixed and variable cost components of the total cost. The data for various levels of production are as follows: Units Produced Total Costs 1,550 $223,200 3,160 239,570 4,650 347,200 a. Determine the variable cost per unit and the total fixed cost. Variable cost: (Round to the nearest dollar) Total fixed cost: per unit b. Based on part (a), estimate the total cost for 2,230 units of production. Total cost for 2,230 units