STM Inc. is considering a 4 -year project with an initial cost of $792,032. The project will not directly produce sales but will reduce operating costs by $292,716 a year. The equipment is depreciated straight-line to a zero book value over the life of the project. At the end of the project, the equipment will be sold for an estimated $43,778. The tax rate is 30%. The project will require $21,544 in extra inventory for spare parts and accessories. STM requires a 8% rate of return. What is the NPV of the project