Fill in the missing data for each of the following independent cases, (ignore Income taxes.) (Do not round Intermediate calculations. Leave no cells blank - be certain to enter "0" wherever required.) Variable Expenses Total Contribution Margin Nat income Sales Revenue Break Even Sales Revenue Find Expenses $ 30,000 $ 1 40,000 $ 40,000 80,000 2 80,000 15,000 80,000 3. 40.000 22.000 50,000 38.000 110,000