Question 4: Cost structure estimation Cost account Amount Fixed or variable? direct labor $6,000 OF OV direct materials $10,000 OF OV depreciation $5,000 OF V rent $5,000 OF V administrative staff salaries $8,000 OF OV Production volume was 200 units. a) Which cost structure estimation method should we use? O account classification method high-low method b) Classify each cost account above as fixed or variable. Enter your answers in the table above. c) Estimate the cost structure parameters: total FC=$ unit VC=$ Write down the total cost equation: TC = * volume (e.g., if TC=500+2*volume, enter 500 in the first box and 2 in the second box) d) Predict the total cost of producing 250 units