There was a post on here recently that showed instacarts margins were double and triple what they claim. The delivery guy accidentally gave the dude the real receipt and he compared Instacarts prices to the stores actual prices, they were insanely higher.

edit: update- couldn't find the specific post I was thinking of from hackernews but here's someone downthread who posted similarly outrageous findings: https://np.reddit.com/r/boston/comments/5xj47l/ever_what_ins...