diff --git a/app/models/contract.rb b/app/models/contract.rb
index 9ddb58f..ec7a6d0 100644
--- a/app/models/contract.rb
+++ b/app/models/contract.rb
@@ -38,7 +38,7 @@ class Contract < ActiveRecord::Base
     define_method(mthd) { "TODO in later release" }
   end
 
-  [:total_spent,
+  [
    :profit_spent
   ].each do |mthd|
     define_method(mthd) { "TODO" }
@@ -81,6 +81,11 @@ class Contract < ActiveRecord::Base
     deliverables.inject(0) {|total, deliverable| total += deliverable.total }
   end
 
+  # OPTIMIZE: N+1
+  def total_spent
+    deliverables.inject(0) {|total, deliverable| total += deliverable.total_spent }
+  end
+
   # OPTIMIZE: N+1
   def profit_budget
     deliverables.inject(0) {|total, deliverable| total += deliverable.profit_budget }
diff --git a/test/unit/contract_test.rb b/test/unit/contract_test.rb
index bd17446..beeeca1 100644
--- a/test/unit/contract_test.rb
+++ b/test/unit/contract_test.rb
@@ -185,4 +185,28 @@ class ContractTest < ActiveSupport::TestCase
       
     end
   end
+
+  context "#total_spent" do
+    should "sum all of the total spents on the Deliverables" do
+      configure_overhead_plugin
+
+      contract = Contract.generate!(:billable_rate => 150.0)
+
+      @project = Project.generate!
+      @developer = User.generate!
+      @role = Role.generate!
+      User.add_to_project(@developer, @project, @role)
+
+      contract.deliverables << @deliverable_1 = FixedDeliverable.generate!(:total => 10_000)
+      contract.deliverables << @deliverable_2 = HourlyDeliverable.generate!(:contract => contract)
+      @deliverable_2.issues << @issue1 = Issue.generate_for_project!(@project)
+      TimeEntry.generate!(:hours => 15, :issue => @issue1, :project => @project,
+                          :activity => @billable_activity,
+                          :user => @developer)
+
+      assert_equal 10_000, @deliverable_1.total_spent
+      assert_equal 2250, @deliverable_2.total_spent
+      assert_equal 12_250, contract.total_spent
+    end
+  end    
 end