Final answer:
The path to the Financial button and the PMT function in Excel is Formulas > Financial > PMT, used to calculate loan payments based on constant payments and interest rates.
Step-by-step explanation:
The correct path to the Financial button and the PMT function in Microsoft Excel is Formulas > Financial > PMT. When you want to calculate the payment for a loan based on constant payments and a constant interest rate, you use the PMT function. The PMT function can be found under the Financial functions category within the Formulas tab in Excel.