I would contest that amount. It is usually a prorated amount base on the time/money he made while working for you.
Here you need a minimum of 17 weeks to draw unemployment. He must have worked the weeks doing construction so that person/company should be the one to foot the largest part of the bill.
Here the rate 6.5% of wages paid. It is base on the average in your work group for a given years. Example they average all farm workers and come up with the rate. So it would have been about $12.35 for unemployment.