private function isManualCalculation()
    {
        $result      = false;
        $calculation = $this->_scopeConfig->getValue(PriceDataProvider::XML_PATH_RANGE_CALCULATION, ScopeInterface::SCOPE_STORE);

        if ($calculation === PriceDataProvider::RANGE_CALCULATION_MANUAL) {
            $result = true;
        }

        return $result;
    }