Double$-$declining$-$balance depreciation A building acquired at the beginning of the year at a cost of $$118,400$ has an estimated residual value of $$4,700$ and an estimated useful life of four years. Determine the following. $($a$)$ The double$-$declining$-$balance $($b$)$ The double$-$declining$-$balance rate depreciation for the first year $ $\%$ Double$-$declining$-$balance depreciation A building acquired at the beginning of the year at a cost of $\backslash (\backslash$$ $87,200\backslash )$ has an estimated residual value of $\backslash (\backslash$$ $6,100\backslash )$ and an estimated useful life of four years. Determine the following. $($a$)$ The double$-$declining$-$balance rate $\backslash (\backslash \%\backslash )($b$)$ The double$-$declining$-$balance depreciation for the first year $\backslash (\backslash$$ $\backslash )$