diff --git a/app/main/views/dashboard.py b/app/main/views/dashboard.py
index fcb2a0fdf..74072aa2b 100644
--- a/app/main/views/dashboard.py
+++ b/app/main/views/dashboard.py
@@ -154,7 +154,7 @@ def get_dashboard_partials(service_id):
         'totals': render_template(
             'views/dashboard/_totals.html',
             service_id=service_id,
-            statistics=get_dashboard_totals(service)
+            statistics=get_dashboard_totals(service['data']['statistics'])
         ),
         'template-statistics': render_template(
             'views/dashboard/template-statistics.html',
@@ -176,11 +176,11 @@ def get_dashboard_partials(service_id):
     }
 
 
-def get_dashboard_totals(service):
-    for msg_type in service['data']['statistics'].values():
+def get_dashboard_totals(statistics):
+    for msg_type in statistics.values():
         msg_type['failed_percentage'] = get_formatted_percentage(msg_type['failed'], msg_type['requested'])
         msg_type['show_warning'] = float(msg_type['failed_percentage']) > 3
-    return service['data']['statistics']
+    return statistics
 
 
 def calculate_usage(usage):
diff --git a/app/statistics_utils.py b/app/statistics_utils.py
index dc3a803a0..4581e069d 100644
--- a/app/statistics_utils.py
+++ b/app/statistics_utils.py
@@ -48,7 +48,7 @@ def get_formatted_percentage(x, tot):
     """
     Return a percentage to one decimal place (respecting )
     """
-    return "{0:.1f}".format((float(x) / tot * 100)) if tot else 0
+    return "{0:.1f}".format((float(x) / tot * 100)) if tot else '0'
 
 
 def statistics_by_state(statistics):
diff --git a/tests/app/main/views/test_dashboard.py b/tests/app/main/views/test_dashboard.py
index b9a23afda..f93f70d7c 100644
--- a/tests/app/main/views/test_dashboard.py
+++ b/tests/app/main/views/test_dashboard.py
@@ -1,9 +1,12 @@
 import copy
 from flask import url_for
 
+import pytest
 from bs4 import BeautifulSoup
 from freezegun import freeze_time
 
+from app.main.views.dashboard import get_dashboard_totals
+
 from tests import validate_route_permission
 from tests.conftest import SERVICE_ONE_ID
 
@@ -435,8 +438,8 @@ def test_service_dashboard_updates_gets_dashboard_totals(mocker,
                                                          mock_get_service_statistics,
                                                          mock_get_usage):
     dashboard_totals = mocker.patch('app.main.views.dashboard.get_dashboard_totals', return_value={
-        'email': {'requested': 0, 'delivered': 0, 'failed': 0},
-        'sms': {'requested': 0, 'delivered': 0, 'failed': 0}
+        'email': {'requested': 123, 'delivered': 0, 'failed': 0},
+        'sms': {'requested': 456, 'delivered': 0, 'failed': 0}
     })
 
     with app_.test_request_context(), app_.test_client() as client:
@@ -444,3 +447,45 @@ def test_service_dashboard_updates_gets_dashboard_totals(mocker,
         response = client.get(url_for('main.service_dashboard', service_id=SERVICE_ONE_ID))
 
     assert response.status_code == 200
+
+    page = BeautifulSoup(response.data.decode('utf-8'), 'html.parser')
+    numbers = [number.text.strip() for number in page.find_all('div', class_='big-number-number')]
+    assert '123' in numbers
+    assert '456' in numbers
+
+    table_rows = page.find_all('tbody')[0].find_all('tr')
+
+
+def test_get_dashboard_totals_adds_percentages():
+    stats = {
+        'sms': {
+            'requested': 3,
+            'delivered': 0,
+            'failed': 2
+        },
+        'email': {
+            'requested': 0,
+            'delivered': 0,
+            'failed': 0
+        }
+    }
+    assert get_dashboard_totals(stats)['sms']['failed_percentage'] == '66.7'
+    assert get_dashboard_totals(stats)['email']['failed_percentage'] == '0'
+
+
+@pytest.mark.parametrize(
+    'failures,expected', [
+        (2, False),
+        (3, False),
+        (4, True)
+    ]
+)
+def test_get_dashboard_totals_adds_warning(failures, expected):
+    stats = {
+        'sms': {
+            'requested': 100,
+            'delivered': 0,
+            'failed': failures
+        }
+    }
+    assert get_dashboard_totals(stats)['sms']['show_warning'] == expected
diff --git a/tests/app/test_statistics_utils.py b/tests/app/test_statistics_utils.py
index 1ea0d6542..cb6b27db8 100644
--- a/tests/app/test_statistics_utils.py
+++ b/tests/app/test_statistics_utils.py
@@ -53,7 +53,7 @@ def test_sum_of_statistics_sums_inputs():
 
 
 @pytest.mark.parametrize('emails_failed,emails_requested,expected_failure_rate', [
-    (0, 0, 0),
+    (0, 0, '0'),
     (0, 1, '0.0'),
     (1, 3, '33.3')
 ])
@@ -69,7 +69,7 @@ def test_add_rates_sets_email_failure_rate(emails_failed, emails_requested, expe
 
 
 @pytest.mark.parametrize('sms_failed,sms_requested,expected_failure_rate', [
-    (0, 0, 0),
+    (0, 0, '0'),
     (0, 1, '0.0'),
     (1, 3, '33.3')
 ])