Too many financial decisions are made without factoring in the time value of money. Whether providing financial planning advice related to a client’s retirement, advising a client about a business ...

Claire Boyte-White is the lead writer for NapkinFinance.com, co-author of I Am Net Worthy, and an Investopedia contributor. Claire's expertise lies in corporate finance & accounting, mutual funds, ...

The future value function capability in Microsoft Excel helps business owners easily assemble data for projects such as budgeting and company or asset valuation exercises. The Excel formula is fairly ...

An even cash flow of regularly scheduled payments defines an annuity. If you borrow money to start your business, the monthly payments are calculated using an annuity formula. Two basic annuity ...

Calculating the interest rate using the present value formula can at first seem impossible. However, with a little math and some common sense, anyone can quickly calculate an investment's interest ...

Net present value (NPV) represents the difference between the present value of cash inflows and outflows over a set time period. Knowing how to calculate net present value can be useful when choosing ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Dr. Melody Bell is a personal finance expert, entrepreneur, educator, and researcher. Melody ...

To find an investment's interest rate, substitute price, face value, and duration into a formula. For T-bills, subtract purchase price from face value, divide by face value, adjust for term. Online ...