Finance equations and surveys are often used to help individuals and families plan for their financial futures. When business students are learning basic principals of finance, they must memorize several equations that are subsequently used in the algorithms behind questionnaires that investment companies offer to their customers. These equations and answers translate into retirement planning, investment options, and mortgage amortization schedules that are quite useful. Business managers, advertising professionals, and entrepreneurs also benefit from a basic understanding of these essential equations. The formulas are designed to help these professionals know how to effectively run a business for profit while maintaining minimal expenditures.