Ditterentual Nhalysis for Mochine Replacement. Ridgeway Digital Components Company assembles circuit boards by using a manually operated machine to insert electronic components. The original cost of the proposal was made to replace the present manufacturing procedure with a fully automatic machine that has a purchase price of $125,400. The automatic machine has an estimated useful life of 5 yeurs and no significant residual value. For use in evaluating the proposat, the managerial occountant accumulated the following annual data on present and proposed operations: Prepare a differential analysis dated October 1 to determine whether to continue with (Alternative 1) or replace (Alternative 2) the old machine, Prepare the analysis over the useful life of the new machine. If an amount is zero, enter " 0 ", If required, use a minus sign to indicate a loss