The Business Cycle How will you weather the ups and downs of the business cycle? Share | Related Content The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.