Can you explain the internal auditors role in the enterprise resources planning (ERP) environment ?

1- on line registration of raw material unit price from purchasing orders

2- calculate manhours all over company in comparison with total salaries

3- calculate indirect expenses allover company

4- review total products costs

5- check ERP bugs in reference with products costs & report to  ERP project manager

6- cross check material list with products or job orders

7- report to top management products costs list periodically due change of raw materials, direct & indirect labor

8- Report to top management the cost of nonconform, repaired & reject