fix(Asset): set current asset value before calculating difference amount (#24119)

diff --git a/erpnext/assets/doctype/asset_value_adjustment/asset_value_adjustment.py b/erpnext/assets/doctype/asset_value_adjustment/asset_value_adjustment.py
index c2579eb..74ca62f 100644
--- a/erpnext/assets/doctype/asset_value_adjustment/asset_value_adjustment.py
+++ b/erpnext/assets/doctype/asset_value_adjustment/asset_value_adjustment.py
@@ -13,8 +13,8 @@
 class AssetValueAdjustment(Document):
 	def validate(self):
 		self.validate_date()
-		self.set_difference_amount()
 		self.set_current_asset_value()
+		self.set_difference_amount()
 
 	def on_submit(self):
 		self.make_depreciation_entry()