add base config function

app/models/shop_application.rb

@@ -22,7 +22,7 @@ class ShopApplication < ActiveRecord::Base
         visible true
         label "订单总金额(元)"
         pretty_value do
-          value!=0 ? (value.to_f / 100.0):0
+          value!=0 ? (value.to_f / 100):0
         end
       end
       field :address