diff --git a/src/PriceListTools/CombineTool.cs b/src/PriceListTools/CombineTool.cs
index f6eac8a..c634309 100644
--- a/src/PriceListTools/CombineTool.cs
+++ b/src/PriceListTools/CombineTool.cs
@@ -11,42 +11,23 @@ namespace RehauSku.PriceListTools
         public void FillTarget()
         {
             ExcelApp.ScreenUpdating = false;
-            FillAmountColumn(SourceFiles.Select(x => x.SkuAmount).ToArray());
-            AddAndFillSourceColumns();
-            FilterByAmount();
-            ExcelApp.ScreenUpdating = true;
 
-            Forms.Dialog.SaveWorkbookAs();
-        }
-
-        private void AddAndFillSourceColumns()
-        {
-            foreach (var source in SourceFiles)
+            foreach (Source source in SourceFiles)
             {
-                if (source.SkuAmount.Count == 0)
-                    continue;
-
                 TargetFile.Sheet.Columns[TargetFile.amountCell.Column]
                     .EntireColumn
                     .Insert(XlInsertShiftDirection.xlShiftToRight, XlInsertFormatOrigin.xlFormatFromRightOrBelow);
 
                 TargetFile.Sheet.Cells[TargetFile.amountCell.Row, TargetFile.amountCell.Column - 1].Value2 = $"{source.Name}";
 
-                foreach (var kvp in source.SkuAmount)
-                {
-                    Range cell = TargetFile.Sheet.Columns[TargetFile.skuCell.Column].Find(kvp.Key);
-
-                    if (cell == null)
-                    {
-                        continue;
-                    }
-
-                    else
-                    {
-                        TargetFile.Sheet.Cells[cell.Row, TargetFile.amountCell.Column - 1].Value2 = kvp.Value;
-                    }
-                }
+                FillColumn(source.SkuAmount, TargetFile.amountCell.Column - 1);
+                FillColumn(source.SkuAmount, TargetFile.amountCell.Column);
             }
+
+            FilterByAmount();
+            ExcelApp.ScreenUpdating = true;
+
+            Forms.Dialog.SaveWorkbookAs();
         }
     }
 }
diff --git a/src/PriceListTools/ExportTool.cs b/src/PriceListTools/ExportTool.cs
index 10d66b4..fc9e42d 100644
--- a/src/PriceListTools/ExportTool.cs
+++ b/src/PriceListTools/ExportTool.cs
@@ -24,7 +24,7 @@ namespace RehauSku.PriceListTools
         {
             ExcelApp.ScreenUpdating = false;
             GetSelected();
-            FillAmountColumn(new [] {SkuAmount});
+            FillColumn(SkuAmount, TargetFile.amountCell.Column);
             FilterByAmount();
             ExcelApp.ScreenUpdating = true;
 
@@ -67,12 +67,18 @@ namespace RehauSku.PriceListTools
                 }
 
                 if (sku == null || amount == null)
+                {
                     continue;
+                }
 
                 if (SkuAmount.ContainsKey(sku))
+                {
                     SkuAmount[sku] += amount.Value;
+                }
                 else
+                {
                     SkuAmount.Add(sku, amount.Value);
+                }
             }
         }
     }
diff --git a/src/PriceListTools/MergeTool.cs b/src/PriceListTools/MergeTool.cs
index 20ace85..75804a0 100644
--- a/src/PriceListTools/MergeTool.cs
+++ b/src/PriceListTools/MergeTool.cs
@@ -10,7 +10,12 @@ namespace RehauSku.PriceListTools
         public void FillTarget()
         {
             ExcelApp.ScreenUpdating = false;
-            FillAmountColumn(SourceFiles.Select(x => x.SkuAmount).ToArray());
+
+            foreach (Source source in SourceFiles)
+            {
+                FillColumn(source.SkuAmount, TargetFile.amountCell.Column);
+            }
+
             FilterByAmount();
             ExcelApp.ScreenUpdating = true;
 
diff --git a/src/PriceListTools/PriceListTool.cs b/src/PriceListTools/PriceListTool.cs
index 09315a2..99eef17 100644
--- a/src/PriceListTools/PriceListTool.cs
+++ b/src/PriceListTools/PriceListTool.cs
@@ -31,37 +31,37 @@ namespace RehauSku.PriceListTools
             }
         }
 
-        protected private void FillAmountColumn(Dictionary<string, double>[] dictionaries)
+        protected private void FillColumn(Dictionary<string, double> dictionary, int column)
         {
-            foreach (var dictionary in dictionaries)
+            foreach (var kvp in dictionary)
             {
-                if (dictionary.Count == 0)
-                    continue;
+                Range cell = TargetFile.Sheet.Columns[TargetFile.skuCell.Column].Find(kvp.Key);
 
-                foreach (var kvp in dictionary)
+                if (cell == null)
                 {
-                    Range cell = TargetFile.Sheet.Columns[TargetFile.skuCell.Column].Find(kvp.Key);
+                    System.Windows.Forms.MessageBox.Show
+                        ($"Артикул {kvp.Key} отсутствует в таблице заказов {RegistryUtil.PriceListPath}",
+                        "Отсутствует позиция в конечной таблице заказов",
+                        System.Windows.Forms.MessageBoxButtons.OK,
+                        System.Windows.Forms.MessageBoxIcon.Information);
+                }
 
-                    if (cell == null)
+                else
+                {
+                    Range sumCell = TargetFile.Sheet.Cells[cell.Row, column];
+
+                    if (sumCell.Value2 == null)
                     {
-                        System.Windows.Forms.MessageBox.Show
-                            ($"Артикул {kvp.Key} отсутствует в таблице заказов {RegistryUtil.PriceListPath}",
-                            "Отсутствует позиция в конечной таблице заказов",
-                            System.Windows.Forms.MessageBoxButtons.OK,
-                            System.Windows.Forms.MessageBoxIcon.Information);
+                        sumCell.Value2 = kvp.Value;
                     }
 
                     else
                     {
-                        Range sumCell = TargetFile.Sheet.Cells[cell.Row, TargetFile.amountCell.Column];
-
-                        if (sumCell.Value2 == null)
-                            sumCell.Value2 = kvp.Value;
-                        else
-                            sumCell.Value2 += kvp.Value;
+                        sumCell.Value2 += kvp.Value;
                     }
                 }
             }
+
         }
 
         protected private void FilterByAmount()