diff --git a/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/StockController.java b/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/StockController.java
index c056774..c871c44 100644
--- a/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/StockController.java
+++ b/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/controller/StockController.java
@@ -9,6 +9,7 @@ import com.lanyuanxiaoyao.service.template.controller.SimpleControllerSupport;
 import java.time.LocalDate;
 import java.util.Map;
 import java.util.function.Function;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -18,6 +19,7 @@ import org.springframework.web.bind.annotation.RestController;
  * @author lanyuanxiaoyao
  * @version 20250829
  */
+@Slf4j
 @RestController
 @RequestMapping("stock")
 public class StockController extends SimpleControllerSupport<Stock, Void, StockController.DetailItem, StockController.DetailItem> {
diff --git a/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/helper/NumberHelper.java b/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/helper/NumberHelper.java
index 0f8bae9..75a3d37 100644
--- a/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/helper/NumberHelper.java
+++ b/leopard-server/src/main/java/com/lanyuanxiaoyao/leopard/server/helper/NumberHelper.java
@@ -16,19 +16,16 @@ public class NumberHelper {
     if (ObjectUtil.isNull(value)) {
       return FINANCE_NULL_DOUBLE;
     }
-    var builder = new StringBuilder();
-    if (value > 100000000) {
-      builder.append(value.longValue() / 100000000).append("亿");
-      value = value % 100000000;
+    var result = FINANCE_NULL_DOUBLE;
+    var absValue = Double.valueOf(Math.abs(value));
+    if (absValue > 100000000) {
+      result = NumberUtil.decimalFormat("#.##亿", absValue / 100000000);
+    } else if (value > 10000) {
+      result = NumberUtil.decimalFormat("#.##万", absValue / 10000);
+    } else {
+      result = NumberUtil.decimalFormat("#.##", absValue);
     }
-    if (value > 10000) {
-      builder.append(value.longValue() / 10000).append("万");
-      value = value % 10000;
-    }
-    if (value > 0) {
-      builder.append(NumberUtil.decimalFormat("#.##", value));
-    }
-    return builder.toString();
+    return value < 0 ? "-" + result : result;
   }
 
   public static String formatPercentageDouble(Double value) {