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 5,445 $462,000 2,145 297,000 3,420 409,860 a. Determine the variable cost per unit and the total fixed cost. Variable cost: (Round to the nearest dollar.) $fill in the blank 1 158 per unit Total fixed cost: $fill in the blank 2 b. Based on part (a), estimate the total cost for 2,730 units of production. Total cost for 2,730 units: $fill in the blank 3