Hi,

Please try this process to add the sub total, IVA12 and total rows to your table:

        ->pipe(new \koolreport\processes\Map([
            '{value}' => function($row, $meta, $index, $mapState) {
                $SubTotal = isset($mapState['SubTotal']) ?
                    $mapState['SubTotal'] : [];

                if (! isset($SubTotal['Total'])) {
                    $SubTotal['Precio_Final'] = 'Sub Total';
                    $SubTotal['Total'] = 0;
                }
                $SubTotal['Total'] += 1*$row['Total'];

                $mapState['SubTotal'] = $SubTotal;

                return ['{rows}' => $row, '{state}' => $mapState];
            },
            '{end}' => function($count, $mapState) {
                $SubTotal = $mapState['SubTotal'];
                $IVA12 = [
                    'Precio_Final' => 'IVA12',
                    'Total' => $SubTotal['Total'] * 12/100,
                ];
                $Total = [
                    'Precio_Final' => 'Total',
                    'Total' => $SubTotal['Total'] + $IVA12['Total'],
                ];
                return [
                    $SubTotal,
                    $IVA12,
                    $Total
                ];
            },
        ]))
        ->pipe($this->dataStore('myDataStore'));

Please let us know if there's any problem. Thanks!

In that case, you probably have to wait till our datatables has the ability to add rows to the footer like you want. Thanks!