diff --git a/src/main/java/com/eactive/eai/custom/statistics/collector/HourStatsAggregator.java b/src/main/java/com/eactive/eai/custom/statistics/collector/HourStatsAggregator.java
index cef19b1..b8acfff 100644
--- a/src/main/java/com/eactive/eai/custom/statistics/collector/HourStatsAggregator.java
+++ b/src/main/java/com/eactive/eai/custom/statistics/collector/HourStatsAggregator.java
@@ -22,6 +22,7 @@ public class HourStatsAggregator {
 
 	// 건수 메트릭
 	private final AtomicLong totalCnt = new AtomicLong(0);
+	private final AtomicLong successCnt = new AtomicLong(0);
 	private final AtomicLong timeoutCnt = new AtomicLong(0);
 	private final AtomicLong systemErrCnt = new AtomicLong(0);
 	private final AtomicLong bizErrCnt = new AtomicLong(0);
@@ -67,7 +68,11 @@ public class HourStatsAggregator {
 		}
 		// 로그 시퀀스 400: 응답시간 및 에러 타입 기록
 		else if (logSeq == 400) {
-			if (!event.isSuccess()) {
+			// 성공 여부 카운트
+			if (event.isSuccess()) {
+				successCnt.incrementAndGet();
+			} else {
+				// 에러 유형별 카운트
 				switch (event.getErrorType()) {
 					case TIMEOUT:
 						timeoutCnt.incrementAndGet();
@@ -185,11 +190,10 @@ public class HourStatsAggregator {
 
 		// 건수 메트릭
 		long total = totalCnt.get();
+		long success = successCnt.get();
 		long timeout = timeoutCnt.get();
 		long systemErr = systemErrCnt.get();
 		long bizErr = bizErrCnt.get();
-		long success = total - (timeout + systemErr + bizErr);
-		success = Math.max(0, success);  // 음수 방지
 
 		stats.setTotalCnt(total);
 		stats.setSuccessCnt(success);
diff --git a/src/main/java/com/eactive/eai/custom/statistics/collector/MinuteStatsAggregator.java b/src/main/java/com/eactive/eai/custom/statistics/collector/MinuteStatsAggregator.java
index e4d42f5..d2eb524 100644
--- a/src/main/java/com/eactive/eai/custom/statistics/collector/MinuteStatsAggregator.java
+++ b/src/main/java/com/eactive/eai/custom/statistics/collector/MinuteStatsAggregator.java
@@ -22,6 +22,7 @@ public class MinuteStatsAggregator {
 
 	// 건수 메트릭
 	private final AtomicLong totalCnt = new AtomicLong(0);
+	private final AtomicLong successCnt = new AtomicLong(0);
 	private final AtomicLong timeoutCnt = new AtomicLong(0);
 	private final AtomicLong systemErrCnt = new AtomicLong(0);
 	private final AtomicLong bizErrCnt = new AtomicLong(0);
@@ -67,7 +68,11 @@ public class MinuteStatsAggregator {
 		}
 		// 로그 시퀀스 400: 응답시간 및 에러 타입 기록
 		else if (logSeq == 400) {
-			if (!event.isSuccess()) {
+			// 성공 여부 카운트
+			if (event.isSuccess()) {
+				successCnt.incrementAndGet();
+			} else {
+				// 에러 유형별 카운트
 				switch (event.getErrorType()) {
 					case TIMEOUT:
 						timeoutCnt.incrementAndGet();
@@ -185,11 +190,10 @@ public class MinuteStatsAggregator {
 
 		// 건수 메트릭
 		long total = totalCnt.get();
+		long success = successCnt.get();
 		long timeout = timeoutCnt.get();
 		long systemErr = systemErrCnt.get();
 		long bizErr = bizErrCnt.get();
-		long success = total - (timeout + systemErr + bizErr);
-		success = Math.max(0, success);  // 음수 방지
 
 		stats.setTotalCnt(total);
 		stats.setSuccessCnt(success);