static _normalizeCurrencySuffixAndNegativeSignCharacters(s, settings) {
        s = String(s); // Typecast to a string, in case that the given value is a number

        // Remove the currency symbol
        if (settings.currencySymbol !== AutoNumeric.options.currencySymbol.none) {
            s = s.replace(settings.currencySymbol, '');
        }

        // Remove the suffixText
        if (settings.suffixText !== AutoNumeric.options.suffixText.none) {
            s = s.replace(settings.suffixText, '');
        }

        // Replace the custom negative sign with a hyphen
        if (settings.negativeSignCharacter !== AutoNumeric.options.negativeSignCharacter.hyphen) {
            s = s.replace(settings.negativeSignCharacter, '-');
        }

        return s;
    }
Removes the currency symbol and the suffix text from the given string, and replace the custom negative sign with a hyphen.

@param {string} s
@param {object} settings
@returns {string | *}
@private