Can you please guide me on what should I calculate for A to I? I have the book answers and I searched for couple of others in Chegg and they are not the same..

Q7: Sensitivity Analysis. The Rustic Welt Company is proposing to replace its old welt-making machinery with more modern equipment. The new equipment costs $9 million (the existing equipment has zero salvage value). The attraction of the new machinery is that it is expected to cut manufacturing costs from their current level of $8 a welt to $4. However, as the following table shows, there is some uncertainty about both the future sales and the performance of the new machinery: Conduct a sensitivity analysis of the replacement decision assuming a discount rate of 12%. Rustic does not pay taxes. Label your answers as follows