Need help solving using excel formulas eg (b25+b25)

Romero \& Kiplinger recently purchased some capital assets and would like to project depreciation amounts. Information about the assets are below: =8GradedWorksheet+ Year 3 Hours Year 4 Hours Year 5 Hours Year 6 Hours Year 7 Hours Year 8 Hours Year 9 Hours Year 10 Hours \begin{tabular}{rr} B & C \\ \hline & 2,471 \\ & 2,985 \\ & 3,100 \\ & 2,582 \\ & 2,584 \\ & 3,621 \\ & 2,574 \\ & 2,353 \\ & 970 \end{tabular} Year 11 Hours Supercomputer Date Purchased 1-Jul cost 126,874 Annual Maintenance fee $ 450 Useful Life 8 years Salvage Value 27,000 Depreciation Method Double-Declining Balance Complete the depreciation schedules in the spreadsheet for each of these assets. Milling Machine Double-Declining Balance