Calculate how much base alcohol at a given percentage is required to make a finished product with a specific alcohol content for any volume (eg. 316ml of 95% alcohol is needed to make a 750ml bottle of 40% vodka- the rest of the bottle can be filled with water, sugar, essence, etc., without altering the proof of the finished liquor).
| %abv alcohol to use
|ml total desired||
ml of base needed
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