Код отличается на "* currencyRate"
if (displayDiscountPrice != 0)
$(this).children('td').eq(1).text( formatCurrency(discountedPrice * currencyRate, currencyFormat, currencySign, currencyBlank) );
$(this).children('td').eq(2).text(upToTxt + ' ' + formatCurrency(discountUpTo * currencyRate, currencyFormat, currencySign, currencyBlank));