def alcohol_by_volume_alternative(og, fg):
    """
    Alcohol by Volume Alternative Calculation

    :param float og: Original Gravity
    :param float fg: Final Gravity
    :return: Alcohol by Volume decimal percentage
    :rtype: float

    Alternate Formula:

    A more complex equation which attempts to provide greater accuracy at higher gravities is:

    :math:`\\text{ABV} = \\frac{76.08 \\times \\big( \\text{og} - \\text{fg} \\big)}{1.775 - \\text{og}} \\times \\frac{\\text{fg}}{0.794}`

    This comes from Balling's famous formula, where the Original Extract and
    Real Extract values have been converted using the simple Plato to SG
    equation, giving Alcohol by Weight.  This is then converted to Alcohol
    by Volume multiplying by the ratio of Final Gravity to Density of Ethanol.

    The alternate equation reports a higher ABV for higher gravity beers.
    This equation is just a different take on it. Scientists rarely agree
    when it comes to equations. There will probably be another equation for
    ABV down the road.

    The complex formula, and variations on it come from:

    * Ritchie Products Ltd, (Zymurgy, Summer 1995, vol. 18, no. 2)
    * Michael L. Hall's article Brew by the Numbers: Add Up What's in Your Beer, and Designing Great Beers by Daniels.

    Source:

    * http://www.brewersfriend.com/2011/06/16/alcohol-by-volume-calculator-updated/
    """  # noqa
    # Density listed (possibly incorrectly) from Zymergy Mag
    DENSITY_ETHANOL = 0.794
    return (76.08 * (og - fg) / (1.775 - og)) * (fg / DENSITY_ETHANOL) / 100.0