I appreciate the both of your answers. I have actually seen that equation while researching online but did not use it. I also did not know that it wasn't the most accurate of the formulas available!
We have created a brew of cider. Our initial hydrometer readings goes as follows:
1.056 Gravity
7.5% ABV
13.8 Brix
Our problem is we are getting two different readings off the the same internet calculator for ABV.
Brix Calculator https://www.brewersfriend.com/brix-converter/ at 7.5% ABV...