Not really, many of the stores are $1M+, so a $100 purchase of groceries could just be considered an outlier. The bigger changes you'll find is when word of mouth spreads about a specific product. Ex. If Tide came out with a new version of the pods, sales will be slow (assuming no advertising) for the first few weeks, but it acts more like an exponential curve if the product catches on.

Good! The Dark pattern for the store layout is working :P

Friend referred me.