Can someone help me with NPV,IRR,MIRR, and Payback values? I need to know how to figure out the answers.

Check these sites.

http://en.wikipedia.org/wiki/Net_present_value

http://invest-faq.com/articles/analy-int-rate-return.html

http://publib.boulder.ibm.com/infocenter/iadthelp/v7r0/index.jsp?topic=/com.businessobjects.integration.eclipse.designer.doc/designer/Functions79.html

http://www.money-zine.com/Calculators/Investment-Calculators/Payback-Calculator/