GMAT test score discrepancy

howardhu35

Based on the test score I got months ago, my analytical writing score is 5.0/75% and I have self-reported this score

and ordered an additional report.

I got a copy today in which the percentage ranking became 74%.

1% descrepany is not huge. But it may cast impact on my credit. How come they made this type of mistake?

The percentage chart shows 5.0==75%.   

I observed that there had been so many score report issues lately.  So disappointed with ETS and mba.com!