diff --git a/pkg/db/postgres.go b/pkg/db/postgres.go
index 3a9baed..b33375a 100644
--- a/pkg/db/postgres.go
+++ b/pkg/db/postgres.go
@@ -312,13 +312,15 @@ func (m *Postgres) GetEnvCharts(env string, testsInTop int) (map[string]interfac
 		LIMIT 1
 	), temp AS (
 	SELECT TestName,
+	SUM(CASE WHEN Result = 'fail' AND TestTime > (SELECT Date FROM recentCutoff) THEN 1 ELSE 0 END) As FailedTestNum,
+	SUM(CASE WHEN TestTime > (SELECT Date FROM recentCutoff) THEN 1 ELSE 0 END) As TotalTestNum,
 	ROUND(COALESCE(AVG(CASE WHEN TestTime > (SELECT Date FROM recentCutoff) THEN CASE WHEN Result = 'fail' THEN 1 ELSE 0 END END) * 100, 0), 2) AS RecentFlakePercentage,
 	ROUND(COALESCE(AVG(CASE WHEN TestTime <= (SELECT Date FROM recentCutoff) AND TestTime > (SELECT Date FROM prevCutoff) THEN CASE WHEN Result = 'fail' THEN 1 ELSE 0 END END) * 100, 0), 2) AS PrevFlakePercentage
 	FROM %s
 	GROUP BY TestName
 	ORDER BY RecentFlakePercentage DESC
 	)
-	SELECT TestName, RecentFlakePercentage, RecentFlakePercentage - PrevFlakePercentage AS GrowthRate
+	SELECT TestName, RecentFlakePercentage, RecentFlakePercentage - PrevFlakePercentage AS GrowthRate, FailedTestNum, TotalTestNum
 	FROM temp
 	ORDER BY RecentFlakePercentage DESC;
 	`, viewName, viewName)
diff --git a/pkg/handler/flake_chart.html b/pkg/handler/flake_chart.html
index 5e6784c..bd3039b 100644
--- a/pkg/handler/flake_chart.html
+++ b/pkg/handler/flake_chart.html
@@ -132,13 +132,15 @@
   for (let i = 0; i < recentFlakePercentTable.length; i++) {
       const {
           testName,
+	      failedTestNum,
+          totalTestNum,
           recentFlakePercentage,
           growthRate
       } = recentFlakePercentTable[i];
       const row = document.createElement("tr");
       row.appendChild(createCell("td", "" + (i + 1))).style.textAlign = "center";
       row.appendChild(createCell("td", `<a href="${window.location.pathname}?env=${query.env}&test=${testName}">${testName}</a>`));
-      row.appendChild(createCell("td", recentFlakePercentage + "%")).style.textAlign = "right";
+      row.appendChild(createCell("td", recentFlakePercentage + "% (" + failedTestNum + "/" + totalTestNum + ")")).style.textAlign = "right";
       row.appendChild(createCell("td", `<span style="color: ${growthRate === 0 ? "black" : (growthRate > 0 ? "red" : "green")}">${growthRate > 0 ? '+' + growthRate : growthRate}%</span>`));
       tableBody.appendChild(row);
   }
diff --git a/pkg/models/models.go b/pkg/models/models.go
index 9e051aa..1a1c723 100644
--- a/pkg/models/models.go
+++ b/pkg/models/models.go
@@ -61,6 +61,8 @@ type DBFlakeRow struct {
 	TestName              string  `json:"testName"`
 	RecentFlakePercentage float32 `json:"recentFlakePercentage"`
 	GrowthRate            float32 `json:"growthRate"`
+	FailedTestNum         float32 `json:"failedTestNum"`
+	TotalTestNum          float32 `json:"totalTestNum"`
 }
 
 // DBFlakeBy represents a "row" in the flake rate by _ of top 10 of recent test flakiness charts