diff --git a/app/js/filters/percentage.js b/app/js/filters/percentage.js
deleted file mode 100644
index 484acfe2..00000000
--- a/app/js/filters/percentage.js
+++ /dev/null
@@ -1,14 +0,0 @@
-'use strict';
-
-var filtersModule = require('./_index.js');
-
-/**
- * @ngInject
- */
-function percentage($filter) {
-  return function(input, decimals) {
-    return $filter('number')(input * 100, decimals || 2) + '%';
-  };
-}
-
-filtersModule.filter('percentage', percentage);
diff --git a/test/unit/filters/percentage_spec.js b/test/unit/filters/percentage_spec.js
deleted file mode 100644
index 6f4b7119..00000000
--- a/test/unit/filters/percentage_spec.js
+++ /dev/null
@@ -1,21 +0,0 @@
-describe('Percentage Filter', function() {
-
-  var percentageFilter;
-
-  beforeEach(function() {
-    module('app');
-    module('app.filters');
-  });
-
-  beforeEach(inject(function(_percentageFilter_) {
-    percentageFilter = _percentageFilter_;
-  }));
-
-  it('should format a percentage correctly', function() {
-    expect(percentageFilter(0.987654321)).toBe('98.77%');
-  });
-
-  it('should format a percentage using the specified decimal precision', function() {
-    expect(percentageFilter(0.987654321, 3)).toBe('98.765%');
-  });
-});