Invoice approval report and Invoice detail

 I am testing Oracle Approval Management Engine for AP invoice approval, When I run the invoice approval status report it shows amount instead of total number of invoices approved and also it multiply the invoice amount to the number of approves  for example an invoice of Rs.100,000 is approved by three (03) approves, invoice approval report will show TOTAL NUMBER OF INVOICES APPROVED = Rs. 300,000/-

And also if I change the invoice line amount from additional invoice detail link, report shows the original amount not the revised amount approved by the user.

please tell me how to resolve the issue

regards,

Zunair