Tax Inc. PDF Invoice Prestashop

[apislerr]

How to subtotal product tax and carrier (6% per product)?

At the screenshot show my invoice.

Product price: RM 319
Product Tax: RM 19.14
Carrier Price: RM 22
Carrier Tax: RM 1.32

Total Tax: RM 20.46

But, my invoice show Total Tax: RM 23.32 (Carrier Price + Carrier Tax)
not Carrier Tax  + Product Tax that should be RM 20.46

 

my code /classes/PDF.php

if (Configuration::get('PS_TAX') OR $order->total_products_wt != $order->total_products)
			{
				$pdf->Cell($width, 0, self::l('Total').' '.(self::$_priceDisplayMethod == PS_TAX_EXC ? self::l(' Exc GST') : self::l(' (tax excl.)')).' : ', 0, 0, 'R');
				$pdf->Cell(0, 0, (self::$orderSlip ? '-' : '').self::convertSign(Tools::displayPrice((self::$_priceDisplayMethod == PS_TAX_EXC ? $priceBreakDown['totalWithoutTax'] : $priceBreakDown['totalWithTax']), self::$currency, true)), 0, 0, 'R');
				$pdf->Ln(4);
			
				$pdf->Cell($width, 0, self::l('GST 6%').' : ', 0, 0, 'R');
			$pdf->Cell($w[$priceBreakDown['hasEcotax'] ? 5 : 4], $lineSize, (self::$orderSlip ? '-' : '').self::convertSign(Tools::displayPrice(self::$order->total_shipping, self::$currency, true)), 0, 0, 'R');
			$pdf->Ln(4);
			
			$pdf->Cell($width, 0, self::l('Total Inc GST').' : ', 0, 0, 'R');
				$pdf->Cell(0, 0, (self::$orderSlip ? '-' : '').self::convertSign(Tools::displayPrice(($priceBreakDown['totalWithTax']), self::$currency, true)), 0, 0, 'R');
				$pdf->Ln(4);
			}
			else
			{
				$pdf->Cell($width, 0, self::l('Total').' : ', 0, 0, 'R');
				$pdf->Cell(0, 0, (self::$orderSlip ? '-' : '').self::convertSign(Tools::displayPrice(($priceBreakDown['totalWithoutTax']), self::$currency, true)), 0, 0, 'R');
				$pdf->Ln(4);
			}

[tuk66]

What is your PrestShop version?