PI()*3 or calculating an area of the circle from the radius =PI()/4*3^2. We hope this tutorial helps you understand how to use the PI function in Microsoft Excel; if you have questions about the ...

Annuities represent a loan or investment which offer monthly fixed payments until the account is depleted or paid off. Whether you are investing or borrowing money does not change the calculation.

When you use Excel, you can make changes to the amount borrowed, the interest rate and the payment period and immediately see how the loan would change. How to Calculate Business Loan Payments.