WC_Product_Variable::get_variation_sale_price PHP Method

    public function get_variation_sale_price($min_or_max = 'min', $include_taxes = false)
    {
        $prices = $include_taxes ? $this->get_variation_prices_including_taxes() : $this->get_variation_prices();
        $price = 'min' === $min_or_max ? current($prices['sale_price']) : end($prices['sale_price']);
        return apply_filters('woocommerce_get_variation_sale_price', $price, $this, $min_or_max, $include_taxes);
    }