Can you help me calculate ? step by step by excel or calculate. please.

Quantative Analysis \begin{tabular}{|l|r|} \hline Tax rate & 21% \\ \hline Rate of return & 10% \\ \hline CCA rate & 30% \\ \hline Operation life & 5 \\ \hline Additional Acres & 600 \\ \hline Declining Balance Depreciation % & 20% \\ \hline \end{tabular} Tax Shield Calculation \begin{tabular}{|l|l|l|l|l|l|l|} \hline UCC & 210,000 & ? & ? & ? & ? \\ \hline CCA (30%) & ? & ? & ? & ? & ? \\ \hline CCA tax Shiels (21%) & ? & ? & ? & ? \\ \hline \end{tabular}