Learn which Excel formulas perform best for large datasets and how to optimize them for faster calculations and better ...

You can sum a series of numbers in Excel manually or automatically using ... It will show the details of the calculation. Insider receives a commission when you buy through our links.

The sum of all these discounted cash flows ... Use What-If analysis, a built-in calculator in Excel, to solve for the discount rate that equals zero. Take our NPV/IRR example.

The sum of all these discounted cash flows ... Use What-If analysis, a built-in calculator in Excel, to solve for the discount rate that equals zero. Take our NPV/IRR example.