Close the workbook without saving it and then reopen it. Use the 'What-If Analysis' button (Data tab | Forecast group) to goal seek. Determine a margin that would result in a Year 8 net income of $1,500,000. Save the workbook with your needed changes as Lab 3-1 August Online Technology Eight-Year Financial Projection GS. Submit the workbook with the new values or the results of the goal seek as requested by your instructor.