ur looking for the unit rate here....ur looking for dollars per oz....dollars/oz
store 1 : dollars / oz.....26.62 / 36 = 0.739 rounds to 0.74 per oz
store 2 : dollars / oz.....22.42 / 28 = 0.80 per oz
so the better buy, the cheapest one is : store 1, 26.62 for 36 oz <==