IMO, you shouldn't expect help to arrive within minutes / few hours after posting a question.
Note that it is a week end for most community users and help offered by people is done in their spare time.
If you need help for urgent work (so I assume you get paid for this), I would suggest that you consider paying a consultant to help you.
Instead of waiting for help, you could have spent more time on creating sample data that better fits your requirement.
Looking at your data sample, your sales persons don't show data for two sequential years, so a year over year calculation is pretty hard given your sample data set.
I've attached a sample QVW with a scatter chart and some expressions, as far as I could get with your description and sample data.
That's all I can offer for today.
Regards,
Stefan
