Oahu 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 $40,000$ units at $$80$ per unit. The equipment has a cost of $$7,400,000,$ residual value of $$600,000,$ and an $8-$year life. The equipment can only be used to manufacture the phone. The cost to manufacture the phone follows: