I think the brought column may be the sales dollars brought in from those sales...
From one of their sites:
"There is NO CHARGE for the initial 30 minute preview. If not cancelled within 30 minutes, you will be charged $5.00, for a 1 Day trial membership.
Thereafter, you will be billed $40.00 every 1 Month Until Cancelled. "
So, if most of the sites are set up like this, there could ba combination of joins that canceled straight out, got billed $5.00 and got billed 40 which would add up to an odd number that would be hard to work backward to.
Don't have a clue where the odd cents would come from though....