Origination costa incorrect

Hi, I have some issues with an incorrect origination cost. For this example I have for the terminating cost for Code 70: Connection cost 0.200 and increment 60 sec and 0.190 for each minute = 0.390 for first minutes and that one if correct. But for Origination cost there is a diff. 

Connection cost: 0.200, increment 60 sec and 0,590 for each minute = total 0,790 but in the CDR i get 0,800. What am I missing?

Br Lars