The new vessel is estimated to have a useful life of $20$ years, but it will be depreciated for tax purposes according to the $7$ year MACRS schedule. Table $2$: Depreciation $($in $\%)$ for the $7-$year Modified Accelerated Cost Recovery System

Year $114\mathrm{.}29$

Year $224\mathrm{.}49$

Year $317\mathrm{.}49$

Year $412\mathrm{.}49$

Year $58\mathrm{.}93$

Year $68\mathrm{.}93$

Year $78\mathrm{.}93$

Year $84\mathrm{.}45$

How do you calculate its depreciation?