https://www.brewersfriend.com/refractometer-calculator/ https://www.brewersfriend.com/abv-calculator/ These two calculators appear to offer conflicting opinion on ABV. AI gone mad? (...or daft user) Example (both using the alternative ABV equation): In the refractometer calc, using Part II enter OG 16.1b and FG 7.6b. This results in the following... OG - Corrected: 16.10 °P, 1.066 FG - Corrected: 2.53 °P, 1.010 Alcohol By Volume: 7.37% In the ABV calculator, enter the plato found above (16.1 - 2.53). This results as... Alcohol By Volume: 7.64% Apparent Attenuation: 84% Calories: 215.2 per 12oz bottle Original Gravity: 16.10 °P, 1.066 Final Gravity: 2.53 °P, 1.010 Notice the ABV differs? My 'unearthing' of this contradiction was in an attempt to find the apparent attenuation when using the refractometer calculator, and so as an aside from the potential bug here can I also request this information be included in the refractometer calc page?