On August $3,$ Cinco Construction purchased special$-$purpose equipment at a cost of $$3,300,000.$ The useful life of the equipment was estimated to be eight years, with an estimated residual value of $$40,000.$

a$.$ Compute the depreciation expense to be recognized each calendar year for financial reporting purposes under the straight$-$line depreciation method $($half$-$year convention$).$

b$.$ Compute the depreciation expense to be recognized each calendar year for financial reporting purposes under the $200$ percent declining$-$balance method $($half$-$year convention$)$ with a switch to straight$-$line when it will maximize depreciation expense.

c$.$ Which of these two depreciation methods $($straight$-$line or double$-$declining$-$balance$)$ results in the highest net income for financial reporting purposes during the first two years of the equipment$$s use?

this is what I have for b so far:

Compute the depreciation expense to be recognized each calendar year for financial reporting purposes under the $200$ percent declining$-$balance method $($half$-$year convention$)$ with a switch to straight$-$line when it will maximize depreciation expense. $($Adjust year $9$ depreciation, if necessary, so that the total depreciation expense equals depreciable value of the asset. Do not round intermediate calculations and round your final answers to the nearest whole number.$)$

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Year $200\%$ Declining$-$Balance $($Half$-$Year Convention$)$

$1$ $$412,500$

$2721,875$

$3541,406$

$4406,055$

$5$

$6$

$7$

$8$

$9$

Totals $$2,081,836$