Question $1(14$ marks$)$

Greenspot Ltd$.$ is evaluating two potential investment projects that will reduce its power consumption and increase its production capacity. The table shown below includes the cash flows of these two mutually exclusive projects. The require return for both projects is $12$ percent.

$\backslash$table$[[$Year$,$Cash Flow of Project A$,$Cash Flow of Project B$],[0,-670,000,-320,000$