diff --git a/app/models/delivery.rb b/app/models/delivery.rb
index 367cdc1f..3c46763c 100644
--- a/app/models/delivery.rb
+++ b/app/models/delivery.rb
@@ -20,7 +20,24 @@ class Delivery < ActiveRecord::Base
   def includes_article?(article)
     self.stock_changes.map{|stock_change| stock_change.stock_article.id}.include? article.id
   end
-  
+
+  def sum(type = :gross)
+    total = 0
+    for sc in stock_changes
+      article = sc.stock_article
+      quantity = sc.quantity
+      case type
+        when :net
+          total += quantity * article.price
+        when :gross
+          total += quantity * article.gross_price
+        when :fc
+          total += quantity * article.fc_price
+      end
+    end
+    total
+  end
+
   protected
   
   def stock_articles_must_be_unique
diff --git a/app/views/finance/invoices/show.html.haml b/app/views/finance/invoices/show.html.haml
index b57a0296..ccb87778 100644
--- a/app/views/finance/invoices/show.html.haml
+++ b/app/views/finance/invoices/show.html.haml
@@ -1,5 +1,7 @@
 - title t('.title', number: @invoice.number)
 
+- total = 0
+
 %p
   %b= heading_helper(Invoice, :created_at) + ':'
   = format_time(@invoice.created_at)
@@ -15,15 +17,21 @@
     %b= heading_helper(Invoice, :deliveries) + ':'
     %span><
       - @invoice.deliveries.order(:delivered_on).each_with_index do |delivery, index|
+        - sum = delivery.sum
+        - total += sum
         = ', ' if index > 0
         = link_to format_date(delivery.delivered_on), [delivery.supplier,delivery]
+        = ' (' + number_to_currency(sum) + ')'
 - if @invoice.orders.any?
   %p
     %b= heading_helper(Invoice, :orders) + ':'
     %span><
       - @invoice.orders.order(:ends).each_with_index do |order, index|
+        - sum = order.sum
+        - total += sum
         = ', ' if index > 0
         = link_to format_date(order.ends), new_finance_order_path(order_id: order)
+        = ' (' + number_to_currency(sum) + ')'
 
 %p
   %b= heading_helper(Invoice, :number) + ':'
@@ -43,6 +51,13 @@
 %p
   %b= heading_helper(Invoice, :deposit_credit) + ':'
   = number_to_currency @invoice.deposit_credit
+%p
+  %b= heading_helper(Invoice, :net_amount) + ':'
+  = number_to_currency @invoice.net_amount
+- if @invoice.deliveries.any? || @invoice.orders.any?
+  %p
+    %b= heading_helper(Invoice, :total) + ':'
+    = number_to_currency total
 %p
   %b= heading_helper(Invoice, :note) + ':'
   =h @invoice.note
diff --git a/config/locales/de.yml b/config/locales/de.yml
index 62e9a8cd..df339054 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -60,6 +60,7 @@ de:
         deliveries: Lieferung
         deposit: Pfand berechnet
         deposit_credit: Pfand gutgeschrieben
+        net_amount: Pfandbereinigter Betrag
         note: Notiz
         number: Nummer
         orders: Bestellung
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 6497da03..b5269903 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -60,6 +60,7 @@ en:
         deliveries: Delivery
         deposit: Deposit charged
         deposit_credit: Deposit returned
+        net_amount: Amount adjusted for refund
         note: Note
         number: Number
         orders: Order
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 5c7f2ac3..f771b959 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -60,6 +60,7 @@ fr:
         deliveries: Réapprovisionnement
         deposit: Consigne facturée
         deposit_credit: Consigne remboursée
+        net_amount: Montant recalculé en excluant les consignes
         note: Note
         number: Numéro
         orders: Commande
diff --git a/config/locales/nl.yml b/config/locales/nl.yml
index 3d2cc0e0..83faa3d2 100644
--- a/config/locales/nl.yml
+++ b/config/locales/nl.yml
@@ -60,6 +60,7 @@ nl:
         deliveries: Levering
         deposit: Statiegeld in rekening gebracht
         deposit_credit: Statiegeld teruggekregen
+        net_amount: Bedrag gecorrigeerd voor statiegeld
         note: Notitie
         number: Nummer
         orders: Bestelling