diff --git a/modules/purchase_trade/dashboard.py b/modules/purchase_trade/dashboard.py
index fba9705..3afdcb5 100755
--- a/modules/purchase_trade/dashboard.py
+++ b/modules/purchase_trade/dashboard.py
@@ -293,7 +293,7 @@ class Dashboard(ModelSQL, ModelView):
         last_total,last_variation = Valuation.get_totals()
         pnl_amount = "{:,.0f}".format(round(last_total,0))
         pnl_variation = 0
-        if last_total:
+        if last_total and last_variation:
             pnl_variation = "{:,.2f}".format(round((last_variation/last_total)*100,0))
         Open = Pool().get('open.position')
         opens = Open.search(['id','>',0])