Yello Bus Lines uses the units-of-activity method in depreciating its buses. One bus was purchased on January 1, 2015, at a cost of $352, 110. Over its 5-year useful life, the bus is expected to be driven 208, 600 miles. Salvage value is expected to be $7, 920. Compute the depreciable cost per unit. (Round answer to 2 decimal places, e.g.0.50.) Depreciation cost per unit $ _______________