diff --git a/src/gui_qt/data/container.py b/src/gui_qt/data/container.py
index 82dabc6..913ad7e 100644
--- a/src/gui_qt/data/container.py
+++ b/src/gui_qt/data/container.py
@@ -463,6 +463,16 @@ class ExperimentContainer(QtCore.QObject):
 
         return offset
 
+    @plot_update
+    def shift_scale(self, shift_factor: tuple[float, float], scaling_factor: tuple[float, float]):
+        scale_x, scale_y = scaling_factor
+        shift_x, shift_y = shift_factor
+        self.data.x = self.data.x * scale_x + shift_x
+        self.data.y = self.data.y * scale_y + shift_y
+        self.data.y_err = self.data.y_err * scale_y
+
+        self.update({'shift': scaling_factor, 'scale': shift_factor})
+
     def get_namespace(self, i: int = None, j: int = None) -> dict:
         if (i is None) and (j is None):
             prefix = ''
diff --git a/src/gui_qt/main/management.py b/src/gui_qt/main/management.py
index 191fe7c..5e2966b 100644
--- a/src/gui_qt/main/management.py
+++ b/src/gui_qt/main/management.py
@@ -841,13 +841,10 @@ class UpperManagement(QtCore.QObject):
             d_k = self.data[k]
 
             if copy_data is None:
-                d_k.x = d_k.x*v[1][0] + v[0][0]
-                d_k.y = d_k.y*v[1][1] + v[0][1]
+                d_k.shift_scale(v[0], v[1])
             else:
                 new_data = d_k.copy(full=True)
-                new_data.update({'shift': v[0], 'scale': v[1]})
-                new_data.data.x = new_data.x*v[1][0] + v[0][0]
-                new_data.y = new_data.y*v[1][1] + v[0][1]
+                new_data.shift_scale(v[0], v[1])
 
                 sid = self.add(new_data)
                 sid_list.append(sid)