I have made table with one column of numbers and another of percent values. Percent values are made by textFields with expresions like this: <textFieldExpression><![CDATA[new Double( ($F{number}.doubleValue() / $V{totalNumber}.doubleValue())*100 )]]></textFieldExpression> In column footers i want to have totals. For number is ok, but i have no idea how to make it for percent values, because they are only a textFields. Number || Percent 4 || 40% 3 || 30% 3 || 30% ==Totals=== 10 || 100% <-- problem