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 1,430 $182,160 2,580 214,140 3,630 283,360 a. Determine the variable cost per unit and the total fixed cost Variable costi (Round to the nearest dollar) per unit Total fixed cost b. Based on part (a), estimate the total cost for 1.820 units of production Total cost for 1,620 units