Crane Ltd$.$ purchased a new machine on April $4,2020,$ at a cost of $$172,000.$ The company estimated that the machine would have a residual value of $$14,000.$ The machine is expected to be used for $10,000$ working hours during its four$-$year life Actual machine usage was $1,600$ hours in $2020$; $2,000$ hours in $2021$; $2,200$ hours in $2022$; $2,300$ hours in $2023$; and $1,900$ hours in $2024.$ Crane has a December $31$ year end.

$($a$)$

Calculate depreciation for the machine under each of the following methods: $($Round expense per unit to $2$ decimal places, e$8.2\mathrm{.}75$ and final answers to $0$ decimal places, $8.5,275)$

$(1)$ Straight$-$line for $2020$ through to $2024.$

$2020$ expense $

$2021$ expense $

$2022$ expense $

$2023$ expense $

$2024$ expense $