Question $4$: $(15$ Marks$)$

Runder Company is evaluating a proposal to purchase a new machine that would cost $$100,000$ and have a salvage value of $$10,000$ in $4$ years. It would provide annual operating cash savings of $$10,000$ as follows:

$\backslash$table$[[,$Old Machine,New Machine$],[\backslash$table$[[$Salaries$],[$Sunliss$]],$$$40,000,$$$36,000$