use oldest instead of group[0]

src/market/acquisition/AcquisitionResultTable.vue

@@ -55,13 +55,13 @@ const { sortedArray, headerProps } = useSort<Result>(computed(() => {
             const total = group.reduce((acc, r) => acc + r.quantity, 0);
             const totalRemaining = group.reduce((acc, r) => acc + r.remaining, 0);
             const price = group.reduce((acc, r) => acc + r.price * r.remaining, 0) / totalRemaining;
-            const precentProfit = marketTaxStore.calculateProfit(price, group[0].sell);
+            const precentProfit = marketTaxStore.calculateProfit(price, oldest.sell);
             list.push({
                 type: oldest,
                 typeID: type.id,
                 name: type.name,
-                buy: group[0].buy,
-                sell: group[0].sell,
+                buy: oldest.buy,
+                sell: oldest.sell,
                 price: price,
                 remaining: totalRemaining,
                 quantity: total,