so Nando Robierto had 115 health and i bought the whip which gives 10% more health and the 10% of 115 is 11.5 so he must had 126.5 health but he had 116. It's not fair. if the upgrade gives you 1% more health but it says that it will give 10% more then you should make it more or write that in the item's description
This is just a visual bug. I'll be working on it. Thanks for the report! :D