An e$-$commerce company is considering a technology upgrade that would significantly streamline its order fulfillment process. It has an existing order fulfillment process that is mostly manual; while it works, it is inefficient. Purchasing the technology upgrade would require an up$-$front investment of $$500,000.$ It would have an annual operating and maintenance cost of $$20,000,$ but would result in labor savings of $$135,000$ per year. The company is considering an $8$ year investment horizon; at the end of this horizon, the technology upgrade will have a $$22,000$ salvage value. Assume that the company$$s MARR is $10\%$ and compute the present worth of the technology upgrade.