I created this tool 3-4 years ago to help me determine ROI (return on investment) for pellet purchases and compare two different pellet brands, so I could determine which pellet was the most cost effective in meeting my heating needs.
http://jsfiddle.net/jasonday/zNxRQ/embedded/result/
Have fun.
http://jsfiddle.net/jasonday/zNxRQ/embedded/result/
Have fun.