removes empty % sign when there are no votes

app/helpers/application_helper.rb

@@ -4,4 +4,8 @@ module ApplicationHelper
     debate.tag_list.map { |tag| link_to sanitize(tag), debates_path(tag: tag) }.join(', ').html_safe
   end
 
+  def percentage(vote, debate)
+    return if debate.total_votes == 0
+    debate.send(vote).percent_of(debate.total_votes).to_s + "%"
+  end
 end

app/models/debate.rb

@@ -12,12 +12,6 @@ class Debate < ActiveRecord::Base
 
   validates :terms_of_service, acceptance: { allow_nil: false }, on: :create
 
-  #vote can be 'likes' or 'dislikes'
-  def percentage(vote)
-    return if total_votes == 0
-    send(vote).percent_of(total_votes)
-  end
-
   def likes
     get_likes.size
   end

app/views/debates/show.html.erb

@@ -10,12 +10,12 @@
 <div>
   <div id='in_favor'>
     <%= link_to "up", debate_votes_path(@debate, value: 'yes'), method: "post" %>
-    <%= @debate.percentage('likes') %>%
+    <%= percentage('likes', @debate) %>
   </div>
   
   <div id='against'>
     <%= link_to "down", debate_votes_path(@debate, value: 'no'), method: "post" %>
-    <%= @debate.percentage('dislikes') %>%
+    <%= percentage('dislikes', @debate) %>
   </div>
   
   Votos <%= @debate.total_votes %>