checking fitness signature

Hi my signature seems off as my PP reads 942 whereas my HIE reads 11.4 any help please to explain this?

http://baronbiosys.com/faq-items/is-my-fitness-signature-right/

Found the bad activity and flagged it which has reduced my PP which has resulted in my FTP going up by 6 points but fits more into the graph in the link thanks Armando.