code: function resolveFraction(frac) {
    frac = `${frac}`;
    if (Patterns.Percentage.test(frac)) {
      return parseFloat(frac) / 100;
    } else if (Patterns.Number.test(frac)) {
      return parseFloat(frac);
    } else
      throw new Error('Unknown fraction format: ', inp);
  }
docs: Get a decimal value from a percentage or a number.
  @param {String|Number} frac - the value to be converted to a decimal fraction
  @return - a decimal value equivalent to the input
  @example
  resolveFraction('25%');   // 0.25
  resolveFraction('0.25');  // 0.25