Question

Foreman Mining purchased land containing a copper deposit for $2,640,000 on January 7, 2021. The company expects to mine 770,000 tons of copper over the next 10 years, and the land is expected to have a residual value of $1,408,000. The company has also purchased mining equipment for $570,000 that will be used only at this site over the 10 years with an estimated residual value of $54,100. By the end of the first year, the company has mined and sold 61,000 tons of copper. What is the cost attributed to copper inventory for 2021, assuming the company uses the units-of-production method?

Answer 1

$138,470

Step-by-step explanation:

cost of mine = $2,640,000

residual value of the land = $1,408,000

cost of equipment = $570,000

residual value = $54,100

it should contain 770,000 tons of copper

units of production depreciation method:

• depreciation of mine = ($2,640,000 - $1,408,000) / 770,000 tons of copper = $1.60 per ton of copper
• depreciation of equipment = ($570,000 - $54,100) / 770,000 tons of copper = $0.67 per ton of copper
• total depreciation per ton of copper = $1.60 + $0.67 = $2.27

since 61,000 tons were extracted, then the depreciation expense = 61,000 x $2.27 = $138,470