The discount rate refers to the interest rate used when calculating the net present value (NPV) of an investment. It represents the time value of money, which is the concept that a sum of money today ...

A price breakpoint is a discount you offer your customers based on the amount of units that they order. The breakpoint is the lower value of the range that entitles a customer to a discount. For ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Robert Kelly is managing director of XTS Energy LLC ...