/**
  * @param \Magento\Sales\Model\Order\Creditmemo $creditmemo
  * @return $this
  */
 public function collect(\Magento\Sales\Model\Order\Creditmemo $creditmemo)
 {
     $order = $creditmemo->getOrder();
     $amount = $order->getFinanceCostAmount();
     $baseAmount = $order->getBaseFinanceCostAmount();
     if ($amount) {
         $creditmemo->setFinanceCostAmount($amount);
         $creditmemo->setBaseFinanceCostAmount($baseAmount);
         $creditmemo->setGrandTotal($creditmemo->getGrandTotal() + $amount);
         $creditmemo->setBaseGrandTotal($creditmemo->getBaseGrandTotal() + $baseAmount);
     }
     return $this;
 }