protected function totalTax(): void 	{ 		$adjustedTaxRate = str_replace('.', '', (string) $this->taxRate);  		$taxRateDividor = '1.' . (($this->taxRate > 0 && $this->taxRate < 10) ? '0' . $adjustedTaxRate : $adjustedTaxRate);  		$this->totals->setTotalTax(MathMoneyOperations::calculate($this->getTotalPriceWithDiscounts(), MathMoneyOperations::calculate($this->totals->getTotalPriceWithDiscounts(), $taxRateDividor, '/'), '-')); 	}