As a marketing manager for Microsoft XBox how do I create a Worksheet/Spreadsheet for calculating costs/expenses and projected revenue for introducing a new XBox product to the marketplace. How to project revenues for the XBox product implementation. Assuming the XBox will hit the market on January of the next year, project what you think the XBox will bring in revenue over the first year by month; the 2nd year by quarter and the 3rd year by quarter. For example, if your product is a new type of running shoe and you are implementing it regionally starting in New England, you likely will sell more in the spring and summer than in the winter. Think about those kinds of variations when doing your projections by month and by quarter.