@darkniko just to put my thoughts into math:
Once you fully upgraded the High score point multiplier you will have points multiplied times 320.
Without the upgrade it would be something like points multiplied times 100 (dependent on the highscore you achieved at the moment you can purchase this multiplier)
@darkniko ... are you trolling? Your highscore of 320 stays even if you reset for investors and stuff. So the boost should actually be quit strong. Since without this upgrade, your highscore starts at 0 (so no boost at the start of each run).
Btw just my thoughts, as i dont have this ugrade at the moment. (require 1 or 2 more runs)
I am lvl 93, chips gold earn me around 50 Millions. While every building tick brings far over 5 Billions ... well thx for the peanuts i guess. (Golddrop scaling may be a bit behind, still dunno if balanced cause of +3% golddrop increase stackable through missions. Might be able to answer this later)