The facts:
The Romney statement would imply that between January 2009 (when Obama took office) and September 2012 (the most recent month for which we have statistics), that 580,000 women have lost their jobs.
According to the monthly jobs report from the Bureau of Labor Statistics, there were about 66.1 million women on nonfarm payrolls in January 2009. In September 2012, that number was 65.8 million. That's a loss of roughly 300,000 jobs -- 283,000, to be precise.
So where does the 580,000 jobs lost claim come from? It could be 6 months old.
In March, 65.5 million women were employed -- a net loss of 583,000 jobs since January 2009. That would give Romney the magic number. But, since March, 300,000 jobs have been added to the economy, reducing the jobs lost number to 283,000.
http://www.cnn.com/2012/10/17/politi...obs/index.html