Scenarios are a tool to test “what-if” questions. Use Tools > Scenarios to enter variable contents—scenarios—in the same cell. Each scenario is named, and can be edited and formatted separately, and chosen from a drop-down list in the Navigator and the title bar of the scenario. When you print the spreadsheet, only the contents of the currently active scenario is printed.
By adding a scenario, you can quickly change the arguments of a formula and view the new results. For example, if you wanted to calculate different interest rates on an investment, you could add a scenario for each interest rate, and quickly view the results. If you had another formula that calculated your yearly income and included the result of the interest rate formula as an argument, it would also be updated. If all your sources of incomes used scenarios, you could efficiently build a complex model of your possible income.