Divorce Support Forums: spousal support

I am currently waiding thru my first and last divorce. We have been married for 15 yrs. After the first 3 years of the mariage, my wife has not worked outside of the house, although she has ran several businesses from our home. One of the last businesses that she ran grossed over 1 million dollars / year. She is currently working outside the home and has been for the last two years. Currently she is grossing 37k / year. I have been with the same employer for the last nineteen years and am currently grossing around 80k / year. We have two children, one is living with me full time and one is living wth her full time. My child support calculation before spousal support is $193.00/month. The courts have awarded her $800.00/month in temporary spousal support which drops my child support to $3.00/month. Is there a way or a calculation to figure out what she will get in permanent spousal support when the divorce is final. oh one last thing, on the property division there is about $272,000.00 in real property or assets to be divided. PLEASE HELP!!!!!