Travis build: 559

snippets/percentile.md

@@ -6,7 +6,7 @@ Use `Array.prototype.reduce()` to calculate how many numbers are below the value
 
 ```js
 const percentile = (arr, val) =>
-  100 * arr.reduce((acc, v) => acc + (v < val ? 1 : 0) + (v === val ? 0.5 : 0), 0) / arr.length;
+  (100 * arr.reduce((acc, v) => acc + (v < val ? 1 : 0) + (v === val ? 0.5 : 0), 0)) / arr.length;
 ```
 
 ```js