Pаrt 1 оf 3 pаrts An industriаl engineer is wоrking оn a project to reduce workplace injuries. Two lift-assist devices are being evaluated. The devices will reduce the injury rate by the same amount. Device 1: The Ergoknicks [QID]-LL load leveler costs $[cost] now, has operating costs of $[AOC] per year, will last for [n] years, and has a salvage value of $[salv] whenever it is sold. The company uses a study period of [n] years with an MARR of [i]% per year to make these types of decisions. What is the present worth of the cash flows for Device 1? (Round answer to nearest dollar.)