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.
['6727', 'Q', 'z', 'P', 'C', '1405', '1145', 'W', 'k', 'j', 'N', '7111']