diff --git a/AsbCloudApp/Services/IDataSaubStatService.cs b/AsbCloudApp/Services/IDataSaubStatService.cs
index 0ac51f4d..38e9dece 100644
--- a/AsbCloudApp/Services/IDataSaubStatService.cs
+++ b/AsbCloudApp/Services/IDataSaubStatService.cs
@@ -15,7 +15,10 @@ namespace AsbCloudApp.Services
         /// <summary>
         /// Создание записей таблицы DataSaubStat
         /// </summary>
-        /// <param name="gap">Временной интервал, за который будет рассчитываться статистика DataSaubStat</param>
+        /// <param name="gap">
+        /// Количество дней, которые необходимо вычесть из текущей даты для формирования начальной даты
+        /// сбора данных по телеметрии
+        /// </param>
         /// <param name="onProgressCallback"></param>
         /// <param name="token"></param>
         /// <returns></returns>
diff --git a/AsbCloudInfrastructure/Background/PeriodicWorks/WorkDataSaubStat.cs b/AsbCloudInfrastructure/Background/PeriodicWorks/WorkDataSaubStat.cs
index 7cef92d4..6a2f92de 100644
--- a/AsbCloudInfrastructure/Background/PeriodicWorks/WorkDataSaubStat.cs
+++ b/AsbCloudInfrastructure/Background/PeriodicWorks/WorkDataSaubStat.cs
@@ -29,7 +29,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
 
         protected override async Task Action(string id, IServiceProvider services, Action<string, double?> onProgressCallback, CancellationToken token)
         {
-            var dataSaubStatService = services.GetService<IDataSaubStatService>();
+            var dataSaubStatService = services.GetRequiredService<IDataSaubStatService>();
 
             if (dataSaubStatService != null )
                 await dataSaubStatService.CreateStatAsync(Gap, onProgressCallback, token);
diff --git a/AsbCloudInfrastructure/Services/DataSaubStatService.cs b/AsbCloudInfrastructure/Services/DataSaubStatService.cs
index 6f3d48ea..509615a2 100644
--- a/AsbCloudInfrastructure/Services/DataSaubStatService.cs
+++ b/AsbCloudInfrastructure/Services/DataSaubStatService.cs
@@ -52,7 +52,7 @@ namespace AsbCloudInfrastructure.Services
                 var lastDate = stats.FirstOrDefault(s => s.IdTelemetry == idTelemetry)?.DateEnd.ToUniversalTime() ?? DateTimeOffset.UnixEpoch;
                 var statsCount = await CreateStatForTelemetryFromDate(idTelemetry, lastDate, token);
                 if(onProgressCallback != null)
-                    onProgressCallback($"Calculate stat for telemetry: {idTelemetry}; from {lastDate}; results count: {statsCount};", 100 * i / idTelemetries.Length);
+                    onProgressCallback($"Calculate stat for telemetry: {idTelemetry}; from {lastDate}; results count: {statsCount};", i * 1d / idTelemetries.Length);
             }
         }