Reviewed by Thomas J. Catalano Fact checked by Vikki Velasquez The discount rate refers to the interest rate used when calculating the net present value (NPV) of an investment. It represents the ...

How to Calculate Breakpoints in Excel. 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 ...

To calculate statistical variance in Microsoft Excel, use the built-in Excel function VAR.

Calculating the return One of the best methods for calculating an average return for a stock investment is the XIRR function in Excel.