Our two nearest 7/11 stores have higher prices than at least one larger store I visit. I wasn't aware that the franchisees could do that, but 7/11 corporate purchased a corner block on the main road 300m away, added a laundromat, chemist, 7/11 extended version, and plenty of parking, just like back home. The franchisees are doomed sadly, 7/11 corporate here is somewhat mercenary.
During the last 12 months we've noticed small increases every month, across a range of products.