∙ Create the Excel spreadsheet shown in Figure 8-20 to determine the number of attendees required for Grant to make a profit.
∙ How does that number change if Grant reduces the registration fee to $149? Use formulas for all calculations and Goal Seek to set profit to $1 by changing the number of attendees.
∙ If the registration fee is $159, how many attendees are required for Grant to make a profit of $10,000?