[azernik]

Grubhub itself, in this article, claims only 35%.

[impendia]

After reading the article I don't feel particularly inclined to take Grubhub at their word.

[azernik]

Yeah, but if they're lying they'd lie on the high end, not the low end. If it's actually 99%, they'd say 99.999%. If it's actually 10%, they'd say 35%.