diff --git a/src/compute/layers/processing/SplitDataLayer.py b/src/compute/layers/processing/SplitDataLayer.py
index 7c5fe4c4..bc4c1059 100644
--- a/src/compute/layers/processing/SplitDataLayer.py
+++ b/src/compute/layers/processing/SplitDataLayer.py
@@ -50,7 +50,8 @@ def process(self, data_el: Tuple[ImageDescriptor, Annotation]):
         def _split_by_percent() -> List[Tuple[ImageDescriptor, Annotation]]:
             new_item_desc = deepcopy(item_desc)
             split_ratio = self.settings.get("split_ratio", 0.8)
-            split_index = int(item_idx / (total_items_cnt * split_ratio))
+            split_num = total_items_cnt * split_ratio
+            split_index = int(item_idx / split_num) + (item_idx % split_num > 0)
             dataset = f"split_{split_index}"
             new_item_desc.res_ds_name = dataset
             return [(new_item_desc, ann)]
@@ -58,7 +59,8 @@ def _split_by_percent() -> List[Tuple[ImageDescriptor, Annotation]]:
         def _split_by_num() -> List[Tuple[ImageDescriptor, Annotation]]:
             new_item_desc = deepcopy(item_desc)
             split_num = self.settings.get("split_num", total_items_cnt // 2)
-            split_index = int(item_idx / split_num)
+            split_index = int(item_idx / split_num) + (item_idx % split_num > 0)
+            print(f"ITEM INDEX: {item_idx}, SPLIT INDEX: {split_index}")
             dataset = f"split_{split_index}"
             new_item_desc.res_ds_name = dataset
             return [(new_item_desc, ann)]
diff --git a/src/ui/dtl/actions/other/split_data/layout/split_data_sidebar.py b/src/ui/dtl/actions/other/split_data/layout/split_data_sidebar.py
index fa9dc8d5..fe7603a0 100644
--- a/src/ui/dtl/actions/other/split_data/layout/split_data_sidebar.py
+++ b/src/ui/dtl/actions/other/split_data/layout/split_data_sidebar.py
@@ -12,7 +12,9 @@
 def create_sidebar_widgets():
     # Sidebar Initialization widgets
 
-    sidebar_percent_slider = Slider(show_input=True, show_input_controls=True, min=1)
+    sidebar_percent_slider = Slider(
+        show_input=True, show_input_controls=True, min=0.01, max=1, step=0.01
+    )
     sidebar_percent_field = Field(
         sidebar_percent_slider,
         "Select percentage",