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If you are heading to the grocery store, you better bring your calculator or a magnifying glass. Why? Well, its getting tougher to figure out who offers the best deal at grocery stores. It used to be that the larger the size you bought, the cheaper the unit cost. A simple example of volume discount. But lately, stores have been getting creative with their pricing. They will often put a smaller size on sale that will give it a lower price per unit than the jumbo size. In addition, it is harder to compare different food items because of shrinking package sizes for some brands. But the only things that matters is the unit price, typically expressed in price per ounce. However, sometimes that is even tough because the store will list on product in the price per quart and another in price per ounce. It's up to you to make the conversion. The basic information below should cover 99% of all the conversions:
- 1 pint = 16 ounces
- 1 quart = 32 ounces
- 1/2 gallon = 64 ounces
- 1 gallon = 128 ounces
- 1 liter = 33.8 ounces
- 1 gallon = 3.79 liters
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