AUTOMATICALLY UPDATE '% COMPLETE' FIELD OF A REQUIREMENT WHEN LINKED TEST CASES PASS

Ex. - A requirement is linked with 4 test cases. When user executes one of the test cases and marks it as 'Passed', the requirement '% Complete' field should be automatically updated to 25%. When all the test cases are marked as 'Passed', the requirement should show as 100% complete and the status of the requirement should change to 'Complete' (New status code needs to be added).