diff --git a/EvoCalculator.Core.Models/Calculation/Models/Prepared/PreparedValues.cs b/EvoCalculator.Core.Models/Calculation/Models/Prepared/PreparedValues.cs
index 334d8ac..0fba47a 100644
--- a/EvoCalculator.Core.Models/Calculation/Models/Prepared/PreparedValues.cs
+++ b/EvoCalculator.Core.Models/Calculation/Models/Prepared/PreparedValues.cs
@@ -103,7 +103,7 @@ namespace EvoCalculator.Core.Models.Calculation.Models.Prepared
                                        NsibBrutto +
                                        TransportTaxGr;
 
-        public decimal AcquisitionExpenses => PlPrice + Insurance - ComissionRub + Discount + TrackerCost + TLMCost +
+        public decimal AcquisitionExpenses => PlPrice + Insurance - ComissionRub - Discount + TrackerCost + TLMCost +
                                               BaseRegistration + Rats;
 
         public decimal NpvBase => PlPrice +