Noone is sure; however, most have been consistent and have offered up minimums... Find your own number and let us know how you got there if you could...
If you look back about a year, you will see some posts that explain how and why people have come to their individual conclusions. Each of them have merit in their own way.
As for me...I make no predictions for PPS. I exect to get back a very nice ROI and that is what I now expect based on the time I have invested here. My ultimate goal, as many know, is to pay my sizeable student loans. That would free me to enjoy the remainder of my years without financial burden. A dream!
Good Luck
-AJest
NOTE: Do not make investment decisions based on the information provided in my posts; past, present, or future.
As Always: "Trust But Verify" -Ronald Reagan