Amir would like to increase the average number of clients served per month. Because retail merchandising has the lowest sales, Amir wants to know how many retail merchandising clients he needs to reach the goal of $35$ clients served per month.

Use Goal Seek to set the average number of clients for all services $($cell I$26)$ to the value of $35$ by changing the average number of retail merchandising clients $($cell I$23).$

Format the text in cell $321$ to clarify what it refers to as follows:

a$.$ Merge and center the range $J21$:$J26.$