diff --git a/ui/src/pages/ProductionProductCostingHasCostDetail.vue b/ui/src/pages/ProductionProductCostingHasCostDetail.vue
index 178de85..5c4effa 100644
--- a/ui/src/pages/ProductionProductCostingHasCostDetail.vue
+++ b/ui/src/pages/ProductionProductCostingHasCostDetail.vue
@@ -2912,22 +2912,9 @@ function shouldIncludeRowInGroupTotal (grp, row) {
 }
 
 function refreshLiveGroupTotals () {
-  detailGroups.value = detailGroups.value.map(group => {
-    const totals = (Array.isArray(group?.items) ? group.items : []).reduce((acc, row) => {
-      if (!shouldIncludeRowInGroupTotal(group, row)) return acc
-      acc.tryTotal += resolveRowTRYTutar(row)
-      acc.usdTotal += resolveRowUSDTutar(row)
-      acc.quantity += resolveNumericRowQuantity(row)
-      return acc
-    }, { tryTotal: 0, usdTotal: 0, quantity: 0 })
-
-    return {
-      ...group,
-      liveTryTotal: totals.tryTotal,
-      liveUsdTotal: totals.usdTotal,
-      liveQuantity: totals.quantity
-    }
-  })
+  // Totals are derived directly from reactive rows. The revision only forces
+  // Quasar's table/sub-header render after an in-place row edit.
+  groupTotalsRevision.value += 1
 }
 
 const pendingRenderedAmounts = new Map()
@@ -2975,25 +2962,35 @@ function renderedRowsForGroup (groupIndex) {
 }
 
 function resolveRenderedGroupIncludedCount (groupIndex) {
-  return renderedRowsForGroup(groupIndex).filter(row => row.included).length
+  const grp = detailGroups.value[groupIndex]
+  return (Array.isArray(grp?.items) ? grp.items : []).filter(row => shouldIncludeRowInGroupTotal(grp, row)).length
 }
 
 function resolveRenderedGroupRowCount (groupIndex) {
-  return renderedRowsForGroup(groupIndex).length
+  const grp = detailGroups.value[groupIndex]
+  return Array.isArray(grp?.items) ? grp.items.length : 0
 }
 
 function resolveGroupTRYTutar (groupIndex, _revision) {
   const grp = detailGroups.value[groupIndex]
-  return parseMoneyInput(grp?.liveTryTotal)
+  return (Array.isArray(grp?.items) ? grp.items : []).reduce((total, row) => {
+    if (!shouldIncludeRowInGroupTotal(grp, row)) return total
+    return total + parseMoneyInput(row?.lTutar)
+  }, 0)
 }
 
 function resolveGroupUSDTutar (groupIndex, _revision) {
   const grp = detailGroups.value[groupIndex]
-  return parseMoneyInput(grp?.liveUsdTotal)
+  return (Array.isArray(grp?.items) ? grp.items : []).reduce((total, row) => {
+    if (!shouldIncludeRowInGroupTotal(grp, row)) return total
+    return total + parseMoneyInput(row?.usdTutar ?? row?.lTutarUSD)
+  }, 0)
 }
 
 function resolveGroupQuantity (grp) {
-  return parseMoneyInput(grp?.liveQuantity)
+  return (Array.isArray(grp?.items) ? grp.items : []).reduce((total, row) => (
+    total + resolveNumericRowQuantity(row)
+  ), 0)
 }
 
 function groupKey (grp, gi) {