Mineral rights on a gold-producing property are purchased for \($2,300,000.\) A total of 27,000 of gold is expected to be mined and can be sold for \($450/ounce.\) It will cost \($250/ounce\) to mine and process it for sale. If 3,000 ounces are produced and sold this year, determine the depletion allowance using (9.C)

a. cost depletion.

b. percentage depletion.