Assumptions: Please use the following assumptions (which may differ slightly from the text): -Stockouts are not permitted (if we don't have enough inventory then we lose that customer order) -We are tracking the inventory at the end of the period -All hiring and lay-offs are done at the beginning of the period (so the number of employees changes at the beginning of the period) The green cells can be manipulated by the planner. The pinkish cells are calculated as a function of the other cells. The yellow cells are "input" data. Make sure that you are using the correct units (e.g. convert costs/limits to be based on the number of units - and not based on hours)