End report card stuck at 96%

[Asthmatic]

So I completed the game, and waited for my report card at the end. It’s stuck at 96%  I have tried everything for over a week now to increase this but nothing work, at the bottom is says:- Bonus score hint spend more science??? How do you spend more science when I have purchased everything in the science shop had have over 80k left over??? 
 

Would be good if obsidian converted wendall’s Java magic storage facility to included vending machines where you could purchase extra resources or even camp decorative item. (hint hint)