diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
index f32ef26..8cba351 100644
--- a/.github/workflows/style.yml
+++ b/.github/workflows/style.yml
@@ -2,27 +2,27 @@ name: Code Style
 
 on:
   push:
-    branches: [ main, master ]
+    branches: [main, master]
     paths-ignore:
-      - 'pretix_advanced_stats/locale/**'
-      - 'pretix_advanced_stats/static/**'
+      - "pretix_advanced_stats/locale/**"
+      - "pretix_advanced_stats/static/**"
   pull_request:
-    branches: [ main, master ]
+    branches: [main, master]
     paths-ignore:
-      - 'pretix_advanced_stats/locale/**'
-      - 'pretix_advanced_stats/static/**'
+      - "pretix_advanced_stats/locale/**"
+      - "pretix_advanced_stats/static/**"
 
 jobs:
   isort:
     name: isort
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Set up Python 3.11
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v6
         with:
           python-version: 3.11
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
@@ -38,12 +38,12 @@ jobs:
     name: flake8
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Set up Python 3.11
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v6
         with:
           python-version: 3.11
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
@@ -60,12 +60,12 @@ jobs:
     name: black
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Set up Python 3.11
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v6
         with:
           python-version: 3.11
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
@@ -82,12 +82,12 @@ jobs:
     name: packaging
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Set up Python 3.11
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v6
         with:
           python-version: 3.11
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7a53e41..5dcdd66 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -2,25 +2,25 @@ name: Tests
 
 on:
   push:
-    branches: [ main, master ]
+    branches: [main, master]
     paths-ignore:
-      - 'pretix_advanced_stats/locale/**'
+      - "pretix_advanced_stats/locale/**"
   pull_request:
-    branches: [ main, master ]
+    branches: [main, master]
     paths-ignore:
-      - 'pretix_advanced_stats/locale/**'
+      - "pretix_advanced_stats/locale/**"
 
 jobs:
   test:
     runs-on: ubuntu-latest
     name: Tests
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Set up Python 3.11
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v6
         with:
           python-version: 3.11
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
diff --git a/pretix_advanced_stats/templates/pretix_advanced_stats/advanced_stats.html b/pretix_advanced_stats/templates/pretix_advanced_stats/advanced_stats.html
index 86cec7e..25fb881 100644
--- a/pretix_advanced_stats/templates/pretix_advanced_stats/advanced_stats.html
+++ b/pretix_advanced_stats/templates/pretix_advanced_stats/advanced_stats.html
@@ -44,6 +44,55 @@ <h3 class="panel-title">{% trans "Sellout by month" %}</h3>
     </div>
 </div>
 
+<div class="panel panel-default">
+    <div class="panel-heading">
+        <h3 class="panel-title">{% trans "Aggregate sellout" %}</h3>
+    </div>
+    <div class="panel-body">
+        <div class="row">
+            <div class="col-md-6">
+                <h4>{{aggregate_previous_event.0.event_name}}</h4>
+                <table class="table">
+                    <thead>
+                        <th>{% trans "Period" %}</th>
+                        <th>{% trans "# tickets" %}</th>
+                    </thead>
+                    <tbody>
+                        {% with start_month=aggregate_previous_event.0.month_name|slice:":3" %}
+                        {% for r in aggregate_previous_event|slice:"1:" %}
+                        <tr>
+                            <td>{{ start_month }}-{{ r.month_name|slice:":3" }}</td>
+                            <td>{{r.cumulative_count}}</td>
+                        </tr>
+                        {% endfor %}
+                        {% endwith %}
+                        
+                    </tbody>
+                </table>
+            </div>
+            <div class="col-md-6">
+                <h4>{{aggregate_current_event.0.event_name}}</h4>
+                <table class="table">
+                    <thead>
+                        <th>{% trans "Period" %}</th>
+                        <th>{% trans "# tickets" %}</th>
+                    </thead>
+                    <tbody>
+                        {% with start_month=aggregate_current_event.0.month_name|slice:":3" %}
+                        {% for r in aggregate_current_event|slice:"1:" %}
+                        <tr>
+                            <td>{{ start_month }}-{{ r.month_name|slice:":3" }}</td>
+                            <td>{{r.cumulative_count}}</td>
+                        </tr>
+                        {% endfor %}
+                        {% endwith %}
+                    </tbody>
+                </table>
+            </div>
+        </div>
+    </div>
+</div>
+
 <script src="{% static "pretix_advanced_stats/stats.js" %}"></script>
 
 {%endif%}
diff --git a/pretix_advanced_stats/views.py b/pretix_advanced_stats/views.py
index 1ad6f28..75c84e6 100644
--- a/pretix_advanced_stats/views.py
+++ b/pretix_advanced_stats/views.py
@@ -1,8 +1,8 @@
 import json
 from django.db.models import Case, CharField, Count, F, Value, When
 from django.db.models.functions import ExtractMonth
-from django.utils.translation import gettext_lazy as _
 from django.views.generic import TemplateView
+from itertools import accumulate
 from pretix.base.models import Event, OrderPosition
 from pretix.control.permissions import EventPermissionRequiredMixin
 
@@ -47,6 +47,33 @@ def fill_missing_months(data_list):
             for month in ordered_months
         ]
 
+    @staticmethod
+    def cumulative_tickets(data):
+        month_name_to_number = {
+            "January": 1,
+            "February": 2,
+            "March": 3,
+            "April": 4,
+            "May": 5,
+            "June": 6,
+            "July": 7,
+            "August": 8,
+            "September": 9,
+            "October": 10,
+            "November": 11,
+            "December": 12,
+        }
+        enriched = [
+            {**entry, "month": month_name_to_number[entry["month_name"]]}
+            for entry in data
+        ]
+        counts = [entry["ticket_count"] for entry in enriched]
+        cumulative = list(accumulate(counts))
+        return [
+            {**entry, "cumulative_count": cum}
+            for entry, cum in zip(enriched, cumulative)
+        ]
+
     @staticmethod
     def _retrieve_ticket_from_event(event):
         """Retrieve ticket count grouped by month for a given event."""
@@ -71,7 +98,7 @@ def _retrieve_ticket_from_event(event):
                     start=1,
                 )
             ],
-            output_field=CharField()
+            output_field=CharField(),
         )
 
         return (
@@ -98,12 +125,13 @@ def get_context_data(self, **kwargs):
         tickets_current_event = self.fill_missing_months(
             self._retrieve_ticket_from_event(event)
         )
-        ticket_previous_event = (
+        tickets_previous_event = (
             self.fill_missing_months(self._retrieve_ticket_from_event(comparison_event))
             if comparison_event
             else None
         )
-
+        aggregate_previous_event = self.cumulative_tickets(tickets_previous_event)
+        aggregate_current_event = self.cumulative_tickets(tickets_current_event)
         ctx.update(
             {
                 "events": [
@@ -111,6 +139,8 @@ def get_context_data(self, **kwargs):
                 ],
                 "selected_slug": self.request.GET.get("comparing-event", ""),
                 "has_orders": event.orders.exists(),
+                "aggregate_previous_event": aggregate_previous_event,
+                "aggregate_current_event": aggregate_current_event,
                 "sellout_comparison_data": json.dumps(
                     {
                         "labels": [d["month_name"] for d in tickets_current_event],
@@ -128,7 +158,7 @@ def get_context_data(self, **kwargs):
                                         "label": str(comparison_event.name),
                                         "data": [
                                             d["ticket_count"]
-                                            for d in ticket_previous_event
+                                            for d in tickets_previous_event
                                         ],
                                         "backgroundColor": "#3C1C4A",
                                     }