IV. What-If-Analysis (Part Two) (10%)

1. Copy the calculation sheet to a new sheet
   and name the new sheet as "what-if-result".
2. Type the following question at cell A18:
   What will be the unit sale price of Intro to Computers set
   if the total of profits at the cell G9 is $54321?
3. Type the following question at cell A19:
   The unit sale price of Intro to Computers should be set _____
4. Find the answer for the above question and
   type the answer at the location of cell A20.
   Show the answer with 2 decimal places.