Current worker pay, total (arbitrary, roughly about US average):
$55,000 per year (all directly contributed to GDP)
Multiply this by the average length of unemployment stint. 24.5 weeks
The average length of unemployment is higher than it's been since government began tracking the data in 1948. (2009 data)
55,000*(24.5/52)= 25,913 in lost wages.
Add
unemployment insurance benefit, a paydown in assets, for same period, at 75% (again arbitrary, not sure exactly what precise % is) rate of pay
25913*.75 = 18684
Total losses to economy from this job loss before any additional factors:
25913+18684= $44,497 in losses.
That gets to close to half of that even before counting on the add-on losses from bills not paid, houses foreclosed on, etc.
Not entirely out of the ballpark, it seems.