Net Present Value Method and Present Value Index of 12% on its investments. \begin{tabular}{cccccc} \multicolumn{2}{c}{ Present Value of an Annuity of $1 at Compound Interest } \\ \hline Year & 6% & 10% & 12% & 15% & 20% \\ \hline 1 & 0.943 & 0.909 & 0.893 & 0.870 & 0.833 \\ 2 & 1.833 & 1.736 & 1.690 & 1.626 & 1.528 \\ 3 & 2.673 & 2.487 & 2.402 & 2.283 & 2.106 \\ 4 & 3.465 & 3.170 & 3.037 & 2.855 & 2.589 \\ 5 & 4.212 & 3.791 & 3.605 & 3.353 & 2.991 \\ 6 & 4.917 & 4.355 & 4.111 & 3.785 & 3.326 \\ 7 & 5.582 & 4.868 & 4.564 & 4.160 & 3.605 \\ 8 & 6.210 & 5.335 & 4.968 & 4.487 & 3.837 \\ 9 & 6.802 & 5.759 & 5.328 & 4.772 & 4.031 \\ 10 & 7.360 & 6.145 & 5.650 & 5.019 & 4.192 \end{tabular} a. Determine the net present value for the two machines. Use the table of present values of an annuity of $1 above. Round to the nearest dollar. Present value of annual net cash flows Amount to be invested Net present value b. Determine the present value index for the two machines. If required, round your answers to two decimal places. \begin{tabular}{lcc} & Sewing Machine & Packing Machine \\ \hline Present value index & \end{tabular} correct.) Check My Work