1. A machine with a book value of $250,000 has an estimated six-year life. A proposal is offered to sell the old machine for $320,000 and replace it with a new machine at a cost of $390,000. The new machine has a six-year life with no residual value. The new machine would reduce annual direct labor costs from $75,000 to $61,000. Prepare a differential analysis dated October 3 on whether to continue with the old machine or replace the old machine. Explain the results.