This article (citing USASpending.GOV) puts the costs much higher than that:
“The site so far has cost American taxpayers more than $630.4 million, nearly seven times its original estimate of $93 million...”
http://www.newsmax.com/Newsfront/hearings-applications-rollout-website/2013/10/19/id/531965
Final total will likely be around 1.2 billion.