Didn't you make one of your businesses larger than the other?  I recall something like your brewery being an add on to your tavern or vice versa.<br/><br/>At the 15,000g spent they should both medium sized businesses, with a +10 and +5 modifier or totaling +15, and are profit times 100 gold.  Adjusting the numbers a little I think you got 2,600 gold in profit for the month, unless I'm remembering incorrectly.