One of the first things to consider is what kind of data you have to work with in your cash flow template Excel spreadsheet. Ideally, you're looking for accurate monthly data including income statement items like revenue and operating expenses and balance sheet items like equipment purchases and cash from financing activities. If you have a longer time frame you can go with quarterly periods, but annual tends to be too long. After all, how can you predict what is going to happen beyond 5 years with any accuracy unless you're valuing an annuity?
Idea concept build _ Sketch a concept, insert clip art or pictures, and use SmartArt to create a foundational visual... the base visual that you will build upon. Then add additional graphic components directly over the foundational visual. Alternatively you can create consecutive slides where you build increased complexity from the foundational slide so that you show how an idea concept develops and progresses layer_by_layer.