Goldrush Corporation bought a mine in year 1 for $90,000 and estimated there were 100,000 tons of extractable ore. In year 1, it mined 8,000 tons and sold 7,000 tons. In year 2, it mined 7,000 and sold the remaining 1,000 tons from year 1 and 6,500 of the ore mined in year 2. At the end of year 2, Goldrush Corporation estimated that, including the ore extracted but unsold, there were 160,000 tons of ore remaining. Compute the allowable cost depletion for year 1 and year 2. a. Year 1? b. Year 2?