Rust Industrial Systems Company is trying to decide between two different conveyor belt systems. System A costs $$350,000,$ has a four$-$year life, and requires $$141,000$ in pretax annual operating costs. System B costs $$430,000,$ has a six$-$year life, and requires $$135,000$ in pretax annual operating costs. Both systems are to be depreciated straight$-$line to zero over their lives and will have zero salvage value. Whichever project is chosen, it will not be replaced when it wears out. The tax rate is $22$ percent and the discount rate is $8$ percent. Calculate the NPV for both conveyor belt systems