diff --git a/app/models/budget/ballot.rb b/app/models/budget/ballot.rb
index b56a514b0..6dbd67aed 100644
--- a/app/models/budget/ballot.rb
+++ b/app/models/budget/ballot.rb
@@ -2,9 +2,16 @@ class Budget
   class Ballot < ActiveRecord::Base
     belongs_to :user
     belongs_to :budget
-    belongs_to :heading
 
     has_many :lines, dependent: :destroy
-    has_many :spending_proposals, through: :lines
+    has_many :investments, through: :lines
+
+    def total_amount_spent
+      investments.sum(:price).to_i
+    end
+
+    def amount_spent(heading)
+      investments.by_heading(heading).sum(:price).to_i
+    end
   end
 end
diff --git a/app/models/budget/ballot/line.rb b/app/models/budget/ballot/line.rb
index 01b320579..804ee3a2c 100644
--- a/app/models/budget/ballot/line.rb
+++ b/app/models/budget/ballot/line.rb
@@ -3,7 +3,6 @@ class Budget
     class Line < ActiveRecord::Base
       belongs_to :ballot
       belongs_to :investment
-
     end
   end
 end
diff --git a/app/models/budget/investment.rb b/app/models/budget/investment.rb
index e1e193a81..a736751ad 100644
--- a/app/models/budget/investment.rb
+++ b/app/models/budget/investment.rb
@@ -133,15 +133,7 @@ class Budget
     end
 
     def total_votes
-      cached_votes_up + physical_votes + delegated_votes - forum_votes
-    end
-
-    def delegated_votes
-      count = 0
-      representative_voters.each do |voter|
-        count += voter.forum.represented_users.select { |u| !u.voted_for?(self) }.count
-      end
-      return count
+      cached_votes_up + physical_votes
     end
 
     def code
diff --git a/db/migrate/20160523143320_deletes_heading_id_from_ballot.rb b/db/migrate/20160523143320_deletes_heading_id_from_ballot.rb
new file mode 100644
index 000000000..3a7d17e67
--- /dev/null
+++ b/db/migrate/20160523143320_deletes_heading_id_from_ballot.rb
@@ -0,0 +1,5 @@
+class DeletesHeadingIdFromBallot < ActiveRecord::Migration
+  def change
+    remove_column :budget_ballots, :heading_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index ea5199e03..c6f6ffe67 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160520114820) do
+ActiveRecord::Schema.define(version: 20160523143320) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -78,11 +78,8 @@ ActiveRecord::Schema.define(version: 20160520114820) do
     t.integer  "budget_id"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
-    t.integer  "heading_id"
   end
 
-  add_index "budget_ballots", ["heading_id"], name: "index_budget_ballots_on_heading_id", using: :btree
-
   create_table "budget_headings", force: :cascade do |t|
     t.integer "budget_id"
     t.integer "geozone_id"
diff --git a/spec/models/budget/ballot_spec.rb b/spec/models/budget/ballot_spec.rb
new file mode 100644
index 000000000..df31c9eae
--- /dev/null
+++ b/spec/models/budget/ballot_spec.rb
@@ -0,0 +1,43 @@
+require 'rails_helper'
+
+describe Budget::Ballot do
+
+  describe "#amount_spent" do
+    it "returns the total amount spent in investments" do
+      inv1 = create(:budget_investment, :feasible, price: 10000)
+      inv2 = create(:budget_investment, :feasible, price: 20000)
+
+      ballot = create(:budget_ballot)
+      ballot.investments << inv1
+
+      expect(ballot.total_amount_spent).to eq 10000
+
+      ballot.investments << inv2
+
+      expect(ballot.total_amount_spent).to eq 30000
+    end
+  end
+
+  describe "#amount_spent by heading" do
+    it "returns the amount spent on all investments assigned to a specific heading" do
+      heading = create(:budget_heading)
+      inv1 = create(:budget_investment, :feasible, price: 10000, heading: heading)
+      inv2 = create(:budget_investment, :feasible, price: 20000, heading: create(:budget_heading))
+      inv3 = create(:budget_investment, :feasible, price: 25000)
+      inv4 = create(:budget_investment, :feasible, price: 40000, heading: heading)
+
+      ballot = create(:budget_ballot)
+      ballot.investments << inv1
+      ballot.investments << inv2
+      ballot.investments << inv3
+
+      expect(ballot.amount_spent(heading.id)).to eq 10000
+      expect(ballot.amount_spent(nil)).to eq 25000
+
+      ballot.investments << inv4
+
+      expect(ballot.amount_spent(heading.id)).to eq 50000
+    end
+  end
+
+end
\ No newline at end of file