[reboog711]

Perhaps I am misreading this, but doesn't:

"Millions and millions of dollars of error not in our favor."

mean they owed more than they thought?

If an audit is 'in my favor' that means you made a mistake and owe me more.

If the audit is 'not in my favor' then you made a mistake and I owe you more.

I'll add that this "Hollywood" accounting is also used in the music industry.

[gms7777]

It was the error that wasn't in their favor, not the audit. It means they either already overpaid, (or themselves were underpaid).

[eric_h]

The audit discovered errors on the part of the publisher that were not in their favor (and occurred prior to the audit).

[seanflyon]

If an audit is in your favor that means that it found an error that was not in your favor.