Exercise 12-6 simple rate of return method [lo12-6] the management of ballard microbrew is considering the purchase of an automated bottling machine for $60,000. the machine would replace an old piece of equipment that costs $15,000 per year to operate. the new machine would cost $6,000 per year to operate. the old machine currently in use could be sold now for a salvage value of $20,000. the new machine would have a useful life of 10 years with no salvage value. required: 1. what is the annual depreciation expense associated with the new bottling machine