A machine cost $$265,000$ to purchase. Fuel and minor maintenance are estimated to

cost $$10\mathrm{.}50$ per operating hour. A set of tires cost $$3,500$ to replace, and their estimated

life is $5,000$ hours. The machine is expected to last for $12,500$ hours, after which it will

be sold for a salvage value of $20\%$ of the original purchase price. How much should the

owner of the machine charge per hour of use if it is expected that the machine will

operate for $2,500$ hours per year? The company's cost of capital rate is $7\mathrm{.}15\%.$