cell, and then change the width of column I to $9\mathrm{.}2$

In cell B$11,$ insert a formula that uses the IFERROR function to divide the total sales for Q$1$ in cell B$8$ by the total sales in cell G$8$ and display "Incorrect" in case of an error. Use an absolute reference to cell G$8$ in the formula, and then fill the range C$11$:E$11$ with the formula in cell B$11.$