[FPDF] ผมต้องการเลื่อนตำแหน่งของที่อยู่ลอยอยู่ในรูป cell ขึ้นไปครับ

 foreach ($total as $day => $values) {
                if ($values['MONTH(date_s_c)'] == $month) {
                    $this->Cell(18, 5, iconv('UTF-8', 'TIS-620', ''), 1, 0, 'C');
                    $this->Cell(18, 5, iconv('UTF-8', 'TIS-620', ''), 1, 0, 'C');
                    $this->Cell(18, 5, iconv('UTF-8', 'TIS-620', ''), 1, 0, 'C');
                    $this->Cell(18, 5, iconv('UTF-8', 'TIS-620', $values['salesrep_c']), 1, 0, 'C');
                    $this->Cell(18, 5, iconv('UTF-8', 'TIS-620', $values['sellingdivision_c']), 1, 0, 'C');
                    $this->Cell(18, 5, iconv('UTF-8', 'TIS-620', $values['sellingdepartmentbranch_c']), 1, 0, 'C');
                    $key = $day + 1;
                    if ($key <= count($values) + 1) {
                        if ($values['sellingdepartmentbranch_c'] != $total[$key]['sellingdepartmentbranch_c']) {
                            $this->Ln();
                            // $this->SetX($X);
                            $this->Cell(108, 5, iconv('UTF-8', 'TIS-620', 'SUBTOTAL DEPARTMENT  ' . $values['sellingdivision_c']), 1, 0, 'C');
                            if ($values['sellingdivision_c'] != $total[$key]['sellingdivision_c']) {
                                $this->Ln();
                                $this->Cell(108, 5, iconv('UTF-8', 'TIS-620', 'SUBTOTAL DIVISION  ' . $values['sellingdepartmentbranch_c']), 1, 0, 'C');
                            }
                        }
                    }


                    if ($values['DAY(date_s_c)'] != 1) {
                        $X = $values['DAY(date_s_c)'] * 5 + 113;//ใช้กำหนดจุด X ใหกับยอดขายว่าตรงกับวันไหน

                        $this->SetX($X);
                    }
                 //   $Y = $this->GetY($values['netamount_c']);
                    $this->Cell(5, 5, iconv('UTF-8', 'TIS-620', number_format($values['netamount_c'], 0)), 1, 0, 'C'); //ใช้วนลูปเพื่อเขียนค่ายอดขายในแต่ละวัน