Calc cleanup

app/models/hourly_deliverable.rb

@@ -22,5 +22,13 @@ class HourlyDeliverable < Deliverable
     return self.issues.collect(&:time_entries).flatten.collect(&:hours).sum
 
   end
+  
+  def profit
+    if read_attribute(:profit_percent).nil?
+      return super
+    else
+      return (read_attribute(:profit_percent).to_f / 100.0) * (read_attribute(:cost_per_hour) * read_attribute(:total_hours))
+    end
+  end
 end