On January 1 of Year 1, the company purchased a mine for $150,000. At that time, it was estimated that the mine contained 2,000 tons of ore. During Year 1, the company extracted 900 tons of ore from the mine. On January 1 of Year 2, the company spent $60,000 on mine improvements. During Year 2, the company extracted 600 tons of ore. On December 31 of Year 2, it was estimated that the mine contained 700 tons of ore. Compute depletion expense for

(1) Year 1 and

(2) Year 2.