diff --git a/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs b/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs
index 48d8d7d..085e983 100644
--- a/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs
+++ b/YD_AllHeartRates.Api/Services/Impl/LargeScreenService.cs
@@ -212,11 +212,14 @@ namespace YD_AllHeartRates.Api.Services.Impl
 
             int total = RedisHelper.Keys("heartRate:*").Length;
 
-            res.WarmUp = total == 0 ? 0 : (int)Math.Round(warmUp * 100.0 / total);
-            res.Low = total == 0 ? 0 : (int)Math.Round(low * 100.0 / total);
-            res.Medium = total == 0 ? 0 : (int)Math.Round(medium * 100.0 / total);
-            res.High = total == 0 ? 0 : (int)Math.Round(high * 100.0 / total);
-            res.Warning = total == 0 ? 0 : (int)Math.Round(warning * 100.0 / total);
+            int CalcPercentage(int count) =>
+                total == 0 ? 0 : (int)Math.Round(count * 100.0 / total);
+
+            res.WarmUp = CalcPercentage(warmUp);
+            res.Low = CalcPercentage(low);
+            res.Medium = CalcPercentage(medium);
+            res.High = CalcPercentage(high);
+            res.Warning = CalcPercentage(warning);
 
             return res;
         }