diff --git a/lib/store/shopping/activity_prefecture_details.dart b/lib/store/shopping/activity_prefecture_details.dart
index 8c6f6934..899c9b07 100644
--- a/lib/store/shopping/activity_prefecture_details.dart
+++ b/lib/store/shopping/activity_prefecture_details.dart
@@ -812,22 +812,22 @@ class _ActivityPrefectureDetails extends State<ActivityPrefectureDetails> {
                                 color: Color(0xFFF5F5F5),
                               ),
                               Container(
-                                width: productList.sellCount == null
+                                width: productList.sellCount == 0
                                     ? 0
                                     : (((productList?.sellCount ?? 0) /
-                                                (productList?.productStock ??
-                                                    0)) *
-                                            180.w)
-                                        .toDouble(),
+                                    (productList?.productStock ??
+                                        0)) *
+                                    180.w)
+                                    .toDouble(),
                                 height: 8.h,
                                 decoration: BoxDecoration(
                                     gradient: LinearGradient(
                                         begin: Alignment.centerLeft,
                                         end: Alignment.centerRight,
                                         colors: [
-                                      Color(0xFFFDBA56),
-                                      Color(0xFFFB2B2B)
-                                    ])),
+                                          Color(0xFFFDBA56),
+                                          Color(0xFFFB2B2B)
+                                        ])),
                               )
                             ],
                           )),