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.
['P', 'c', '4585', 'R', '7647', 'D', 'r', '751', 'V', '5021', '1469', 'x', 'n', '7221']