Go to the Sales Projections worksheet, which provides a profit analysis of a new virtual assistant product DiG Technology is planning to develop. Benicio wants to make sure the total expense per unit sold calculation in cell B$17$ does not produce a divide by zero error.

Modify the formula in cell B$17$ as follows:

a$.$ Add the IFERROR function to the formula in cell BI$7.$

b$.$ Use "Divide total expenses by units manufactured" as the message to display in case of an error.

Create a formula using a function.

In the Sales Projections worksheet, the formula in cell B$17$ should contain the IFERROR function.