In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the numerical elements in the given list. Return 0 if no numerical element in the list.
['6507', 'l', '6143', '2955', '7687', 'w', '9547', 'K', 'V', '7699', 'Z', 'e', 'U', 'W']