accounting stuffs

   /**
     * Gets the total revenue.
     *
     * @param array $productData
     * @return float
     */
    private function getTotalRevenue(array $productData): float
    {
        $sumCpFs = $productData['insight_product']['current_price'] + $productData['insight_product']['fulfillment_surcharge'];
        return $productData['count'] * $sumCpFs;
    }

    /**
     * Get the total cost.
     *
     * @param array $productData
     * @return float
     */
    private function getTotalCostFromInsight(array $productData): float
    {
        return $productData['insight_product']['bom_cost'] * $productData['count'];
    }

    /**
     * Get the Gross Margin (Not percentage)
     *
     * @param array $productData
     * @return float
     */
    private function getGrossMarginFromInsight(array $productData): float
    {
        $sumCpFs = $productData['insight_product']['current_price'] + $productData['insight_product']['fulfillment_surcharge'];
        $mulBcC = $productData['insight_product']['bom_cost'] * $productData['count'];

        return ($productData['count'] * $sumCpFs) - $mulBcC;
    }

    /**
     * Get the Gross Margin Percentage
     *
     * @param array $productData
     * @return float
     */
    private function getGrossMarginPercentageFromInsight(array $productData): float
    {
        $sumCpFs = $productData['insight_product']['current_price'] + $productData['insight_product']['fulfillment_surcharge'];
        $cost = ($productData['count'] * $productData['insight_product']['bom_cost']);
        $total = ($sumCpFs - $cost);
        $total = $productData['count'] * $total;

        if (($productData['count'] * $sumCpFs) == 0) {
            return 0.0;
        }

        return $total / ($productData['count'] * $sumCpFs);
    }

    /**
     * Helper to calculate the BOM Cost.
     *
     * @param array $boms
     * @return float
     */
    private function getBomCost(array $boms): float
    {
        $total = 0.00;
        foreach ($boms as $bom) {
            $total += $bom['master_component']['landed_cost'];
        }

        return $total * $bom['quantity'];
    }

    /**
     * Get total cost using bom data
     *
     * @param array $boms
     * @param integer $count
     * @return float
     */
    private function getTotalCostFromBom(array $boms, int $count): float
    {
        return $this->getBomCost($boms) * $count;
    }

    /**
     * Get Gross Margin from Bom data
     *
     * @param array $boms
     * @param array $productData
     * @return float
     */
    private function getGrossMarginFromBom(array $boms, array $productData): float
    {
        $sumCpFs = $productData['insight_product']['current_price'] + $productData['insight_product']['fulfillment_surcharge'];
        $mulBcC = $this->getBomCost($boms) * $productData['count'];

        return ($productData['count'] * $sumCpFs) - $mulBcC;
    }

    /**
     * Get Gross Margin Percentage with Bom data.
     *
     * @param array $boms
     * @param array $productData
     * @return float
     */
    private function getGrossMarginPercentageFromBom(array $boms, array $productData): float
    {
        $sumCpFs = $productData['insight_product']['current_price'] + $productData['insight_product']['fulfillment_surcharge'];
        $cost = ($productData['count'] * $this->getBomCost($boms));
        $total = ($sumCpFs - $cost);
        $total = $productData['count'] * $total;

        if (($productData['count'] * ($sumCpFs)) == 0) {
            return 0.0;
        }

        return $total / ($productData['count'] * ($sumCpFs));
    }