Model/Action/Data/OrderRefundActionData.php
public function getAmount()
    {
        $amount = $this->getRequest()->getRequestParameter('refund_amount');

        return $amount ? $amount : $this->getPaymentBeingRefunded()->getRemainingRefundAmount();
    }
public function getAmount()
    {
        $amount = $this->getRequest()->getRequestParameter('refund_amount');

        return $amount ? $amount : $this->getPaymentBeingRefunded()->getRemainingRefundAmount();
    }
public function getAmount ( ) { $ amount = $ this -> getRequest ( ) -> getRequestParameter ( 'refund_amount' ) ; return $ amount ? $ amount : $ this -> getPaymentBeingRefunded ( ) -> getRemainingRefundAmount ( ) ; }
Returns amount to refund.

@return float
Returns amount to refund .