Average Rate of Return$-$New Product

Micro Tek Inc. is considering an investment in new equipment that will be used to manufacture a smartphone. The phone is expected to generate additional annual sales of $4,300$ units at $$214$ per unit. The equipment has a cost of $$439,900,$ residual value of $$33,100,$ and an $8-$year life. The equipment can only be used to manufacture the phone. The cost to manufacture the phone follows:

Cost per unit:

$\backslash$table$[[$Direct labor,$],[$Direct materials,$$35\mathrm{.}00$