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.
['J', '9625', 'q', 'z', 'a', 'D', 'B', 'b', 'M', '8421', '7947', '7649', 's', 'w']