These can vary greatly depending on your location, pool, pump, filter, heater sizes and ratings. Do you have a concept as to how much use it will get? The cost of gas, electricity, chemical costs -- do you want pool service -- do it yourself -- Knowing some of the above will give you a start as to how long you need to run the equipment, how much chemicals to use and if you have automatic or semiautomatic devices. In other words there are too many variables to give you an accurate answer without knowing the details of your pool. Best ballpark answer is to give you a direction and that would be to ask your neighbors who have pools.
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