diff --git a/src/js/listeners.js b/src/js/listeners.js
index 138fa1d8..0a04bd99 100644
--- a/src/js/listeners.js
+++ b/src/js/listeners.js
@@ -6,7 +6,7 @@ import controls from './controls';
 import ui from './ui';
 import { repaint } from './utils/animation';
 import browser from './utils/browser';
-import { getElement, getElements, hasClass, matches, toggleClass, toggleHidden } from './utils/elements';
+import { getElement, getElements, matches, toggleClass, toggleHidden } from './utils/elements';
 import { on, once, toggleListener, triggerEvent } from './utils/events';
 import is from './utils/is';
 
diff --git a/src/js/utils/animation.js b/src/js/utils/animation.js
index 49bc0b8c..6b950b61 100644
--- a/src/js/utils/animation.js
+++ b/src/js/utils/animation.js
@@ -15,9 +15,7 @@ export const transitionEndEvent = (() => {
         transition: 'transitionend',
     };
 
-    const type = Object.keys(events).find(
-        event => element.style[event] !== undefined,
-    );
+    const type = Object.keys(events).find(event => element.style[event] !== undefined);
 
     return is.string(type) ? events[type] : false;
 })();
diff --git a/src/js/utils/strings.js b/src/js/utils/strings.js
index c872498c..6b9a65a2 100644
--- a/src/js/utils/strings.js
+++ b/src/js/utils/strings.js
@@ -24,7 +24,7 @@ export function getPercentage(current, max) {
         return 0;
     }
 
-    return (current / max * 100).toFixed(2);
+    return ((current / max) * 100).toFixed(2);
 }
 
 // Replace all occurances of a string in a string