Dialogue between two Co-workers

David: Brian, I can honestly say that the revenues have been d substantially this quarter.
Brian: I'm not at all sure about that, Dave. The thing is we have seen a sharp decrease i delivery costs and as for the revenues, well, there's been just a slight decrease o 0.94 per cent. That doesn't sound that bad, does it?
David: Sure, if you think that a d is fine.
Brian: I'm not saying it's fine, Dave, not at all, actually. Still, I believe the r will go up again once we've launched the new product line that Mr Garris's team has been working on for the past nine months.
David: I just hope you're right about that. I wouldn't want to lose my job.
Brian: Oh, cheer up! Every business is bound to s a decrease from time to time.