User blog comment:Deadpegasus/...help./@comment-24220085-20131204044459

Wouldn't you have to consider the fact that the more you climb the tower -- The more HP is needed and you progress 1-2% less every few floors...

So you would need to work out how much percentage you progress every floor per 'Investigation' over the next 90 floors and how much HP is used per 'Investigation'