Possible values for Profit versus revenue (ie which can be negative) The Profit Model 2. Profit model, How calculate profit : From a set of data, calculate Profit, Revenue, Fixed costs, variable costs The Profit Model and Fixed versus variable Expenses 3. Profit Calculation Including converting time periods, such as monthly data into daily date. Converting Profit to a different time period. ( day, month, year) Updated Profit Model when demand and production are not equal: 4. Break even; How calculate and what it means Break Even, when profit = 0?