It could have been a small 140-150mL bottle with 100g? Which I think would be roughly 75%-ish. I've not heard of a glucose test drink with over 100g of glucose, but take that with a grain of salt as I'm not actually in the medical or pathology profession lol.

M2SCs - my drink was a light green/yellowy colour, and it isn't too bad in taste but I had to drink it twice (two tests) in my first pregnancy and it made me feel ill so I have that association with it and I can't even think about it without feeling icky.