A chemical mixer was purchased 8 years ago for $100,000. If replaced, the mixer can be sold on the used equipment market for $15,000. If retained, it will require an investment of $50,000 to upgrade it; if upgraded, it will cost $34,641/year to operate and maintain (O&M) and will have a negligible salvage value after 5 years. using an outsider's viewpoint, calculate the EUAC for keeping the mixer. The MARR is 10%.