diff --git a/FKGees/Constants.cs b/FKGees/Constants.cs
index b8931aa..8124d6c 100644
--- a/FKGees/Constants.cs
+++ b/FKGees/Constants.cs
@@ -5,6 +5,7 @@ namespace FKGees
     internal static class Constants
     {
         public const string DefaultDateFormat = "yyyy-MM-dd";
+
         public static class DbConfig
         {
             public const string Host = "DbSettings:Host";
@@ -22,9 +23,9 @@ namespace FKGees
             {nameof(KwUtarg), "*WYPŁATA DO BANKU*"},
             {nameof(KwInne), "*INNE*"},
             {nameof(KwPomylkaKasjera), "*POMYŁKA*"},
-            {nameof(KwLotto), "*LOTTO*"},
+            {nameof(KwLotto), "*LOTTO*"}
         };
-        
+
         public static readonly Dictionary<string, string> KpTekstyDod = new()
         {
             {nameof(KpKaucjaZaOpakowania), "*KAUCJA ZA OPAKOWANIA*"},
@@ -33,7 +34,12 @@ namespace FKGees
             {nameof(KpInne), "*INNE*"},
             {nameof(KpPaysafe), "*PAYSAFE*"},
             {nameof(KpLotto), "*LOTTO*"},
-            
+        };
+
+        public static readonly Dictionary<string, string> TekstPowodKorekty = new()
+        {
+            {nameof(KorCenZak), "korekta ilości"},
+            {nameof(Rozb), "korekta ceny"},
         };
     }
 }
\ No newline at end of file
diff --git a/FKGees/DocsDefinitions/Decrets/KorCenZak.cs b/FKGees/DocsDefinitions/Decrets/KorCenZak.cs
new file mode 100644
index 0000000..fbef72a
--- /dev/null
+++ b/FKGees/DocsDefinitions/Decrets/KorCenZak.cs
@@ -0,0 +1,70 @@
+using FKGees.Services;
+
+namespace FKGees.DocsDefinitions.Decrets;
+
+public class KorCenZak : IDecretsDefinition
+{
+    public int DocType => 26;
+    public string Type => "KorCenZak";
+    public List<Definition> Definitions { get; } =
+    [
+        new Definition("361-0-24", "WN", "[znr]"), 
+        new Definition("221-0-24", "WN", "[zvr]"), 
+        new Definition("210-1", "MA", "[zbr]"),
+        new Definition("301-0-24", "MA", "[znr]"), 
+        new Definition("342-0-24", "MA", "[snr]-[znr]"),
+        new Definition("343-0-24", "MA", "[sbr]-[snr]"),
+        new Definition("332-0-24", "WN", "[sbr]")
+    ];
+    
+    private readonly PcmService _pcmService;
+
+    public KorCenZak(PcmService pcmService)
+    {
+        _pcmService = pcmService;
+    }
+
+    public Task<List<DecretsResult>> Process(IReadOnlyList<Dok> documents)
+    {
+        var result = new List<DecretsResult>();
+
+        var toProcess = documents
+            .Where(x => x.TypDok == DocType 
+                        && x.PowodKorekty().Contains(Constants.TekstPowodKorekty[nameof(KorCenZak)]));
+
+        foreach (var dok in toProcess)
+        {
+            var opis = _pcmService.RozbNrFakturyKor(dok.DokId);
+            Definitions.ForEach(d =>
+            {
+                var item = dok.DecretKontr();
+                item.Data = dok.DataPom;
+                item.DataWplywu = dok.Data;
+                item.Nr = dok.NrDok;
+                item.Opis = opis;
+                item.StronaKonta = d.AccountSide;
+                item.KontoFk = d.Account;
+                item.Kwota = Processvalue(dok, d.Expression)
+                    .AsString();
+
+                result.Add(item);
+            });
+        }
+
+        return Task.FromResult(result);
+    }
+
+    private static decimal Processvalue(Dok doc, string expression)
+    {
+        return expression switch
+        {
+            "[znr]" => doc.Netto,
+            "[zvr]" => doc.Podatek,
+            "[zbr]" => doc.Netto + doc.Podatek,
+            "[sbr]" => doc.NettoDet + doc.PodatekDet,
+            "[snr]-[znr]" => doc.NettoDet - doc.Netto,
+            "[sbr]-[snr]" => doc.NettoDet + doc.PodatekDet - doc.Netto,
+            _ => 0
+        };
+    }
+}
\ No newline at end of file
diff --git a/FKGees/DocsDefinitions/Decrets/Rozb.cs b/FKGees/DocsDefinitions/Decrets/Rozb.cs
index 4bf00fc..605288f 100644
--- a/FKGees/DocsDefinitions/Decrets/Rozb.cs
+++ b/FKGees/DocsDefinitions/Decrets/Rozb.cs
@@ -29,7 +29,8 @@ public class Rozb : IDecretsDefinition
         var result = new List<DecretsResult>();
 
         var toProcess = documents
-            .Where(x => x.TypDok == DocType);
+            .Where(x => x.TypDok == DocType 
+                        && x.PowodKorekty().Contains(Constants.TekstPowodKorekty[nameof(Rozb)]));
 
         foreach (var dok in toProcess)
         {
diff --git a/FKGees/Extensions/DokExtensions.cs b/FKGees/Extensions/DokExtensions.cs
index 71daff1..9723eab 100644
--- a/FKGees/Extensions/DokExtensions.cs
+++ b/FKGees/Extensions/DokExtensions.cs
@@ -48,4 +48,9 @@ internal static class DokExtensions
         return dok.TekstDok.FirstOrDefault(x => x.Znaczenie == 71)?.Tekst ?? string.Empty;
     }
     
+    internal static string PowodKorekty(this Dok dok)
+    {
+        return dok.TekstDok.FirstOrDefault(x => x.Znaczenie == 144)?.Tekst ?? string.Empty;
+    }
+    
 }
\ No newline at end of file
diff --git a/FKGees/Extensions/ServiceCollectionExtensions.cs b/FKGees/Extensions/ServiceCollectionExtensions.cs
index c54b0e4..22b3f11 100644
--- a/FKGees/Extensions/ServiceCollectionExtensions.cs
+++ b/FKGees/Extensions/ServiceCollectionExtensions.cs
@@ -31,8 +31,9 @@ internal static class ServiceCollectionExtensions
         services.AddSingleton<IDecretsDefinition, KpLotto>();
         services.AddSingleton<IDecretsDefinition, KpPaysafe>();
         services.AddSingleton<IDecretsDefinition, KpRachunki>();
-        services.AddSingleton<IDecretsDefinition, Rozb>();
         services.AddSingleton<IDecretsDefinition, Zwroty>();
+        services.AddSingleton<IDecretsDefinition, Rozb>();
+        services.AddSingleton<IDecretsDefinition, KorCenZak>();
         return services;
     }