Can anyone show the working for these answers? The correct answers are written on the collums (and those with green background), however i need the working on how to get the answers.

GoAnywhere Cases Ltd, makes a number of different suitcases. For each 3 Suitcase set the following applies: The contribution margin per 3 Suitcase set in dollars is $ (to 2 decimal places) The contribution margin ratio per 3 Suitcase set in dollars W (to 2 decimal places) quiz/review.php?attempt=1456278cmide107600 The Break-even units for 3 Suitcase sets is cases. The current profit is $ x A new machine is being considered which will decrease labour costs and allow cases to be made more efficiently. The new machine will additional sales due to extra production and will annual depreciation costs but will decrease labour costs as follows: The Break even units after purchasing the new machine will be cases The new profit will be $x