Wendy, who maintains lawns, has purchased a used lawnmower for $1,500 and is depreciating it over the next two years under the assumption that it will be used for 2,000 hours before dying. At the end of its useful life, the mower is expected to have a value of $100. How much will the mower be depreciated in: Units-of-production = Cost Salvage value Depreciation per Unit of Output Estimated Useful Life in units of production