diff --git a/backend/services/zfs_runner.py b/backend/services/zfs_runner.py
index 0a2ca50..664333b 100644
--- a/backend/services/zfs_runner.py
+++ b/backend/services/zfs_runner.py
@@ -118,8 +118,8 @@ class ZFSRunner:
                 "size": int(parts[1]),
                 "alloc": int(parts[2]),
                 "free": int(parts[3]),
-                "fragmentation": parts[7],
-                "capacity": parts[8],
+                "fragmentation": f"{parts[6]}%",
+                "capacity": f"{parts[7]}%",
                 "health": parts[9]
             }
             pools.append(pool)