diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc68c91..b356d8d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v1.8.0
+
+- Show billability percentage in chart.
+
 ## v1.7.0
 
 - Add mode for viewing chart and stats relative to contract hours.
diff --git a/manifest.json b/manifest.json
index 4cb61fc..12e2406 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "TimeChimp Billability Chart",
   "description": "Adds a billability chart on the TimeChimp hours page.",
-  "version": "1.7.0",
+  "version": "1.8.0",
   "manifest_version": 3,
   "permissions": [
     "webRequest"
diff --git a/src/content/chart.ts b/src/content/chart.ts
index 2687e92..5334a53 100644
--- a/src/content/chart.ts
+++ b/src/content/chart.ts
@@ -117,6 +117,14 @@ export function createOrUpdateChart(
                         );
                     },
                 },
+                dataLabels: {
+                    enabled: true,
+                    verticalAlign: 'bottom',
+                    style: textStyle,
+                    formatter: function () {
+                        return `${Math.round(this.y ?? 0)}%`;
+                    },
+                },
             },
             {
                 name: 'Gem. facturabiliteit',