How much notice do you have to give? <a href=" http://www.casadelafuente.com/clindamycin-300-mg-cost-walgreens.pdf ">oral cleocin for acne</a> That helps to explain why the jobless rate moved downward in July. The labor force participation rate, which measures the share of Americans either working or seeking work, ticked downward from 63.5 percent to 63.4 percent. That's well below the 63.7 percent seen in July 2012. Many economists say that significant growth in the labor force participation rate will be a key signal that the job market is improving.