Sheffield Corp. purchased a delivery truck for $40,500 on January 1, 2022. The truck has an expected salvage value of $8,500, and is expected to be driven 100,000 miles over its estimated useful life of 10 years. Actual miles driven were 16,800 in 2022 and 12,600 in 2023. (a1) Calculate depreciable cost per mile under units-of-activity method. (Round answer to 2 decimal places, eg. 0.50.) Depreciable cost $ per mile Sheffield Corp. purchased a delivery truck for $40,500 on January 1, 2022. The truck has an expected salvage value of $8,500, and is expected to be driven 100,000 miles over its estimated useful life of 10 years. Actual miles driven were 16,800 in 2022 and 12,600 in 2023. (a1) Calculate depreciable cost per mile under units-of-activity method. (Round answer to 2 decimal places, eg. 0.50.) Depreciable cost $ per mile