diff --git a/ui/src/pages/ProductionProductCostingHasCostDetail.vue b/ui/src/pages/ProductionProductCostingHasCostDetail.vue
index f0b2530..54532f9 100644
--- a/ui/src/pages/ProductionProductCostingHasCostDetail.vue
+++ b/ui/src/pages/ProductionProductCostingHasCostDetail.vue
@@ -2883,19 +2883,40 @@ function shouldIncludeRowInGroupTotal (_grp, row) {
   return Boolean(row)
 }
 
+const groupTotalsByName = computed(() => {
+  const totals = new Map()
+  for (const group of detailGroups.value) {
+    const name = normalizeGroupName(group?.sAciklama3)
+    const current = totals.get(name) || { tryTotal: 0, usdTotal: 0, quantity: 0 }
+    for (const row of (Array.isArray(group?.items) ? group.items : [])) {
+      if (!shouldIncludeRowInGroupTotal(group, row)) continue
+      current.tryTotal += resolveRowTRYTutar(row)
+      current.usdTotal += resolveRowUSDTutar(row)
+      current.quantity += resolveNumericRowQuantity(row)
+    }
+    totals.set(name, current)
+  }
+  return totals
+})
+
+function resolveGroupTotals (grp) {
+  return groupTotalsByName.value.get(normalizeGroupName(grp?.sAciklama3)) || {
+    tryTotal: 0,
+    usdTotal: 0,
+    quantity: 0
+  }
+}
+
 function resolveGroupTRYTutar (grp) {
-  const items = Array.isArray(grp?.items) ? grp.items : []
-  return items.reduce((acc, row) => acc + (shouldIncludeRowInGroupTotal(grp, row) ? resolveRowTRYTutar(row) : 0), 0)
+  return resolveGroupTotals(grp).tryTotal
 }
 
 function resolveGroupUSDTutar (grp) {
-  const items = Array.isArray(grp?.items) ? grp.items : []
-  return items.reduce((acc, row) => acc + (shouldIncludeRowInGroupTotal(grp, row) ? resolveRowUSDTutar(row) : 0), 0)
+  return resolveGroupTotals(grp).usdTotal
 }
 
 function resolveGroupQuantity (grp) {
-  const items = Array.isArray(grp?.items) ? grp.items : []
-  return items.reduce((acc, row) => acc + resolveNumericRowQuantity(row), 0)
+  return resolveGroupTotals(grp).quantity
 }
 
 function groupKey (grp, gi) {