diff --git a/benchmark/compare.js b/benchmark/compare.js
index 5b4beda3f11..8e1ab0963af 100644
--- a/benchmark/compare.js
+++ b/benchmark/compare.js
@@ -110,7 +110,7 @@ function compare() {
     var n0 = res[nodes[0]];
     var n1 = res[nodes[1]];
 
-    var pct = ((n0 - n1) / ((n0 + n1) / 2) * 100).toFixed(2);
+    var pct = ((n0 - n1) / n1 * 100).toFixed(2);
 
     var g = n0 > n1 ? green : '';
     var r = n0 > n1 ? '' : red;