Consider the following data:

Silicon Valley Company purchased an asset costing $72,000 that is expected to produce 500,000 units and have a salvage value of $6,000. The first year, 90,000 units are produced; the second year, 82,000 units are produced; the third year, 94,000 units are produced.

Using the units-of-production method, the book value of the asset at the end of year 3 would be:

$60,120

None of these answers are correct

$23,408

$10,824

$12,408

$43,897

$49,296

$36,888

$11,880

$39,456