In the top nav bar, click on the "Profile" dropdown. It will expand.
Click on the ( Menu) icon on the top right corner of the page. The menu will expand.
Then click on the dropdown that says "My Profile". It will expand.
Then click on Edit Settings in the list of links.
Then click on Change my Password in the list of links.
Type in your "Old Password", and type in your desired "New Password" in the 2 boxes.
Then click on the "Change Password" button.