Novak Photography reported net income of $$105,000$ for $2022.$ Included in the income statement were depreciation expense of $$6,300,$ patent amortization expense of $$3,600,$ and a gain on disposal of plant assets of $$3,900.$ Novak's comparative balance sheets show the following balances.

$\backslash$table$[[,\frac{12}{31}\frac{?}{22},\frac{12}{31}\frac{?}{21}$