PLease calculate and show work for PI and Payabck period!

Expected cash flows for the four potential projects that Baker is considering as shown below $($each project ends when its cash flows end$)$:

$\backslash$table$[[$Year$,$Project A$,$Project B$,$Project C$,$Project D$],[0,-$$$4,000,000,-$$$3,000,000,-$$$6,000,000,-$$$7,250,000$