diff --git a/client/src/pages/StoreDetailPage.tsx b/client/src/pages/StoreDetailPage.tsx
index 0309e05..ea31aea 100644
--- a/client/src/pages/StoreDetailPage.tsx
+++ b/client/src/pages/StoreDetailPage.tsx
@@ -261,10 +261,10 @@ export function StoreDetailPage() {
                   <DataTable
                     columns={[
                       { key: 'category_name', label: '原料分类' },
-                      { key: 'theoretical_cost_rate_pct', label: '理论成本率', align: 'right', render: (r) => formatPercent(r.theoretical_cost_rate_pct) },
-                      { key: 'actual_cost_rate_pct', label: '实际成本率', align: 'right', render: (r) => formatPercent(r.actual_cost_rate_pct) },
-                      { key: 'variance_pct', label: '差异', align: 'right', render: (r) => <span className={Number(r.variance_pct) > 20 ? 'text-red-600' : 'text-green-600'}>{Number(r.variance_pct).toFixed(1)}%</span> },
-                      { key: 'benchmark_rate_pct', label: '同类基准', align: 'right', render: (r) => formatPercent(r.benchmark_rate_pct) },
+                      { key: 'consumption_amount', label: '消耗金额', align: 'right', render: (r) => formatCurrency(r.consumption_amount) },
+                      { key: 'actual_cost_rate_pct', label: '占比', align: 'right', render: (r) => formatPercent(r.actual_cost_rate_pct) },
+                      { key: 'benchmark_rate_pct', label: '公司基准', align: 'right', render: (r) => formatPercent(r.benchmark_rate_pct) },
+                      { key: 'variance_pct', label: '差异', align: 'right', render: (r) => <span className={Number(r.variance_pct) > 2 ? 'text-red-600' : 'text-green-600'}>{Number(r.variance_pct).toFixed(1)}%</span> },
                     ]}
                     data={cost.categories}
                   />
diff --git a/server/src/routes/data.ts b/server/src/routes/data.ts
index 7879496..975698a 100644
--- a/server/src/routes/data.ts
+++ b/server/src/routes/data.ts
@@ -383,7 +383,30 @@ router.get('/stores/:code/cost', async (req: AuthRequest, res) => {
   try {
     const [costResult, catResult] = await Promise.all([
       query(`SELECT * FROM analytics.v_store_theoretical_actual_cost_april WHERE store_code = $1`, [req.params.code]),
-      query(`SELECT * FROM analytics.v_store_category_cost_benchmark_april WHERE store_code = $1`, [req.params.code]),
+      query(`
+        WITH store_cat AS (
+          SELECT finance_category AS category_name,
+            round(sum(consumption_amount)::numeric, 2) AS consumption_amount,
+            round(sum(consumption_amount)::numeric / nullif(sum(sum(consumption_amount)) OVER (), 0) * 100, 1) AS actual_cost_rate_pct
+          FROM analytics.v_inventory_cost_classified_april
+          WHERE sales_store_code = $1 AND finance_category IS NOT NULL
+          GROUP BY finance_category
+          ORDER BY sum(consumption_amount) DESC
+        ),
+        company_cat AS (
+          SELECT finance_category,
+            round(sum(consumption_amount)::numeric / nullif(sum(sum(consumption_amount)) OVER (), 0) * 100, 1) AS benchmark_rate_pct
+          FROM analytics.v_inventory_cost_classified_april
+          WHERE finance_category IS NOT NULL
+          GROUP BY finance_category
+        )
+        SELECT s.category_name, s.consumption_amount, s.actual_cost_rate_pct,
+          COALESCE(c.benchmark_rate_pct, 0) AS benchmark_rate_pct,
+          round(s.actual_cost_rate_pct - COALESCE(c.benchmark_rate_pct, 0), 1) AS variance_pct
+        FROM store_cat s
+        LEFT JOIN company_cat c ON s.category_name = c.finance_category
+        ORDER BY s.consumption_amount DESC
+      `, [req.params.code]),
     ])
     sendSuccess(res, { cost: costResult.rows[0], categories: catResult.rows })
   } catch (err: any) { sendError(res, err.message) }