Instacart uplifts all items from Costco almost 20%... on top of the service fee and on top of the tip. Their "Price Terms" only generically state that the prices will be higher than at the warehouse. I assumed it would have been maybe 5% at the most. I think it is deceptive that they don't disclose such an outrageous markup. Plus, the 15% tip I added was against the mark up cost. My Coscto receipt was $379 but I paid Instacart an additional $160! Never again!