diff --git a/Readme.md b/Readme.md
index 73d9c97..15cf54b 100644
--- a/Readme.md
+++ b/Readme.md
@@ -44,7 +44,7 @@ Returns the cloud fraction within the requested great circle.
 | Field    | Type  | Description                                      |
 |----------|-------|--------------------------------------------------|
 | obs_time | float | Observation Unix time of the last analyzed image |
-| value    | float | Cloud fraction in the requested area             |
+| value    | float | Cloud fraction in the requested area in percent  |
 
 
 ## Configuration
diff --git a/day_integration_test.yaml b/day_integration_test.yaml
index 42faef6..5cd4a1c 100644
--- a/day_integration_test.yaml
+++ b/day_integration_test.yaml
@@ -56,7 +56,7 @@ modules:
     total_fraction: 0.7
     zenith_fraction: 0.02
     zenith_value: False
-    zenith_average: 0.02
+    zenith_average: 2.3
 
     comm:
       class: pyobs.comm.local.LocalComm
diff --git a/pyobs_cloudcover/testing/module.py b/pyobs_cloudcover/testing/module.py
index ab2dfb3..e9744ce 100644
--- a/pyobs_cloudcover/testing/module.py
+++ b/pyobs_cloudcover/testing/module.py
@@ -103,11 +103,11 @@ async def _check_point_query(self, url: str, port: int) -> None:
             async with session.get(f"http://{url}:{port}/query/point?az=0.0&alt=90.0") as resp:
                 data = await resp.json()
 
-        np.testing.assert_almost_equal(data["value"], self._zenith_value, 2, err_msg="Wrong point query result!")
+        np.testing.assert_almost_equal(data["value"], self._zenith_value, 1, err_msg="Wrong point query result!")
 
     async def _check_area_query(self, url: str, port: int) -> None:
         async with aiohttp.ClientSession() as session:
             async with session.get(f"http://{url}:{port}/query/area?az=0.0&alt=90.0&radius=10.0") as resp:
                 data = await resp.json()
 
-        np.testing.assert_almost_equal(data["value"], self._zenith_average, 2, err_msg="Wrong area query result!")
+        np.testing.assert_almost_equal(data["value"], self._zenith_average, 1, err_msg="Wrong area query result!")
diff --git a/pyobs_cloudcover/web_api/coverage_query_executor.py b/pyobs_cloudcover/web_api/coverage_query_executor.py
index 7e384f7..0c183ca 100644
--- a/pyobs_cloudcover/web_api/coverage_query_executor.py
+++ b/pyobs_cloudcover/web_api/coverage_query_executor.py
@@ -73,4 +73,5 @@ def area_query_altaz(self, alt: float, az: float, radius: float) -> Optional[flo
         if cloudiness is None:
             return None
         else:
-            return float(cloudiness)
+            cloud_fraction = 100.0 * float(cloudiness)
+            return cloud_fraction
diff --git a/tests/unit/web_api/test_coverage_query_executor.py b/tests/unit/web_api/test_coverage_query_executor.py
index 111c6f9..9d24373 100644
--- a/tests/unit/web_api/test_coverage_query_executor.py
+++ b/tests/unit/web_api/test_coverage_query_executor.py
@@ -49,7 +49,7 @@ def test_area_radec(observer, obs_time) -> None:
     cloud_query = SkyPixelQuery([AltAzCoord(0, 0)], [True])
     executor.set_measurement(CloudCoverageInfo(cloud_query,  1, 2, 0.1, obs_time))
 
-    assert executor.area_query_radec(10, 10, 90) == 1.0
+    assert executor.area_query_radec(10, 10, 90) == 100.0
 
 
 def test_area_radec_nan(observer, obs_time) -> None: