_modifyNegativeSignAndDecimalCharacterForRawValue(s) {
        if (this.settings.decimalCharacter !== '.') {
            s = s.replace(this.settings.decimalCharacter, '.');
        }

        if (this.settings.negativeSignCharacter !== '-' && this.settings.isNegativeSignAllowed) {
            s = s.replace(this.settings.negativeSignCharacter, '-');
        }

        if (!s.match(/\d/)) {
            // The default value returned by `get` is not formatted with decimals
            s += '0';
        }

        return s;
    }
Modify the negative sign and the decimal character of the given string value to a hyphen (-) and a dot (.) in order to make that value 'typecastable' to a real number.

@param {string} s The formatted value
@returns {string} The value with the 'normal' minus sign and decimal character