Perform What$-$If Analysis by changing the Advertising $\%$ under Assumptions from $10\%$ to $15\%$ Copy the new Total Expenses and Profit $/$Loss rows and paste them under the Option$1$ Heading $($rows $34$ and $35).$ Note: You need to "Paste Special" and use Values and Number formats. $16.$ Change the Advertising $\%$ under assumptions back to $10\%($Be sure the values under Option $1$ do not change$).17.$ Perform What $-$If Analysis again, this time by changing the Sales Force $\%$ under Assumptions $(826)$ from $10\%$ to $18\%$ Copy the Total Expenses and Profit$/$ Loss rows and paste them under the Option Heading $($ rows $38$ & $39).$ See note in step $1518.$ Change the Sales Force back to $10\%19.$ Use a function in cell B$4$ to display the current date. $($you may need to format so that only the date appears $)$