This was an employment case (age discrimination) we defended for a large national retailer. Each department's sales went up in the beginning of 1992 because the store was closing, there were liquidation sales, specials etc. Everyone's sales then declined, because the store was not replacing or re-stocking merchandise.
In September 1992 (shown by the yellow line), the new store opened, there was an increase in merchandise and the attendant fanfare surrounding a new opening, and everyone's sales went back up except the plaintiff's. This supported our argument that she was terminated for poor performance.