please help me figure out what i did wrong. thank you

Clean Air Company makes and sells cloth masks. The company purchased a new automated sewing machine at the beginning of Year

$1$ for $$72,000.$ The machine is expected to have a two$-$year useful life and a $$20,200$ salvage value. The expected mask production is

estimated at $103,600$ masks. Actual mask production for the two years was as follows:

Required:

Compute the depreciation expense for each of the two years, using units$-$of$-$production depreciation.

Answer is complete but not entirely correct.