Please show formula

(a) Price MBS's under different market interest mates. (a) (b) (c) (d) (c) \begin{tabular}{|c|c|} \hline 15 & \\ \hline 16 & \\ \hline 17 & Year \\ \hline 18 & 0 \\ \hline 19 & 1 \\ \hline 20 & 2 \\ \hline 21 & 3 \\ \hline 22 & 4 \\ \hline 23 & 5 \\ \hline \end{tabular} Principal Pool due to Principal and Total Principal $7,500,000Balance Prepayment Interest Pmis PoolFactor 0.8430 0.7017 0.5744 0.4601 0.3574 \begin{tabular}{|c|c|c|} \hline J14 & ^ & X \\ \hline & A & B \\ \hline 1 & \\ \hline 12 & (a) Price MBS's under different market interest rates. \end{tabular} 13 14 (a) (b) (c) (d) (c) \begin{tabular}{|c|c|} \hline 15 & \\ \hline 16 & \\ \hline 17 & Year \\ \hline 18 & 0 \\ \hline 19 & 1 \\ \hline 20 & 2 \\ \hline 21 & 3 \\ \hline 22 & 4 \\ \hline 23 & 5 \\ \hline 24 & 6 \\ \hline 25 & 7 \\ \hline 26 & 8 \\ \hline 27 & 9 \\ \hline 28 & 10 \\ \hline 29 & \\ \hline \end{tabular} Principal Pool due to Principal and Total Principal Balance Prepayment Interest. Pmts and Interest PoolFactor \begin{tabular}{rr} \hline 1 \\ \hline 0.8430 \\ \hline 0.7017 \\ \hline 0.5744 \\ 0.4601 \\ 0.3574 \\ 0.2654 \\ 0.1833 \\ \hline 0.1107 \\ 0.0474 \\ 0.0000 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|} \hline 14 & & & \\ \hline 14 & & \end{tabular} (a) Price MBS's under different market interest mates. (a) (b) (c) (d) (c) \begin{tabular}{|c|c|} \hline 15 & \\ \hline 16 & \\ \hline 17 & Year \\ \hline 18 & 0 \\ \hline 19 & 1 \\ \hline 20 & 2 \\ \hline 21 & 3 \\ \hline 22 & 4 \\ \hline 23 & 5 \\ \hline \end{tabular} Principal Pool due to Principal and Total Principal $7,500,000Balance Prepayment Interest Pmis PoolFactor 0.8430 0.7017 0.5744 0.4601 0.3574 \begin{tabular}{|c|c|c|} \hline J14 & ^ & X \\ \hline & A & B \\ \hline 1 & \\ \hline 12 & (a) Price MBS's under different market interest rates. \end{tabular} 13 14 (a) (b) (c) (d) (c) \begin{tabular}{|c|c|} \hline 15 & \\ \hline 16 & \\ \hline 17 & Year \\ \hline 18 & 0 \\ \hline 19 & 1 \\ \hline 20 & 2 \\ \hline 21 & 3 \\ \hline 22 & 4 \\ \hline 23 & 5 \\ \hline 24 & 6 \\ \hline 25 & 7 \\ \hline 26 & 8 \\ \hline 27 & 9 \\ \hline 28 & 10 \\ \hline 29 & \\ \hline \end{tabular} Principal Pool due to Principal and Total Principal Balance Prepayment Interest. Pmts and Interest PoolFactor \begin{tabular}{rr} \hline 1 \\ \hline 0.8430 \\ \hline 0.7017 \\ \hline 0.5744 \\ 0.4601 \\ 0.3574 \\ 0.2654 \\ 0.1833 \\ \hline 0.1107 \\ 0.0474 \\ 0.0000 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|} \hline 14 & & & \\ \hline 14 & & \end{tabular}