[minor] added column type definition in batch-wise balance history
diff --git a/erpnext/stock/report/batch_wise_balance_history/batch_wise_balance_history.py b/erpnext/stock/report/batch_wise_balance_history/batch_wise_balance_history.py
index 9cba203..fca91d6 100644
--- a/erpnext/stock/report/batch_wise_balance_history/batch_wise_balance_history.py
+++ b/erpnext/stock/report/batch_wise_balance_history/batch_wise_balance_history.py
@@ -7,10 +7,10 @@
 from frappe.utils import flt, cint, getdate
 
 def execute(filters=None):
-	if not filters: filters = {}	
+	if not filters: filters = {}
 
 	float_precision = cint(frappe.db.get_default("float_precision")) or 3
-	
+
 	columns = get_columns(filters)
 	item_map = get_item_details(filters)
 	iwb_map = get_item_warehouse_batch_map(filters, float_precision)
@@ -32,8 +32,8 @@
 	"""return columns based on filters"""
 
 	columns = [_("Item") + ":Link/Item:100"] + [_("Item Name") + "::150"] + [_("Description") + "::150"] + \
-	[_("Warehouse") + ":Link/Warehouse:100"] + [_("Batch") + ":Link/Batch:100"] + [_("Opening Qty") + "::90"] + \
-	[_("In Qty") + "::80"] + [_("Out Qty") + "::80"] + [_("Balance Qty") + "::90"]
+	[_("Warehouse") + ":Link/Warehouse:100"] + [_("Batch") + ":Link/Batch:100"] + [_("Opening Qty") + ":Float:90"] + \
+	[_("In Qty") + ":Float:80"] + [_("Out Qty") + ":Float:80"] + [_("Balance Qty") + ":Float:90"]
 
 	return columns