Replace back link on budget stats

app/views/budgets/stats/show.html.erb

@@ -12,7 +12,7 @@
   <div class="expanded no-margin-top padding header">
     <div class="row">
       <div class="small-12 column">
-        <%= back_link_to budgets_path %>
+        <%= back_link_to budget_path(@budget) %>
         <h2 class="margin-top">
           <%= t("stats.title") %><br>
           <span><%= @budget.name %></span>

spec/system/budgets/stats_spec.rb

@@ -30,5 +30,11 @@ describe "Stats" do
         expect(page).not_to have_content "Advanced statistics"
       end
     end
+
+    scenario "Back link redirects to budget page" do
+      visit budget_stats_path(budget)
+
+      expect(page).to have_link("Go back", href: budget_path(budget))
+    end
   end
 end