Wildhorse Co. purchased for $ 8,460,900 a mine that is estimated to have 49.770,000 tons of ore and no salvage value. In the first year, 13,550,000 tons of ofe are extracted. (a 1) Calculate depletion cost per unit. (Round answer to 2 decimal places, e.g. 0,50.) Depletion cost per unit $ per ton