Values vary widely. The best advice that I can give you, for an honest answer, is to try to find a doll as similar to yours as possible on Ebay or another online site. If you can, try to find several examples, taking into consideration the condition of the doll(s). Be sure that you also look at the "completed auctions." This is going to give you what people are REALLY willing to pay, not what someone is "asking" for a doll. From what I see today (5/14/15), people are asking $50 and under for dolls in mint condition with box, birth certificate, etc.
This isn't to say that your doll (s) might not bring more in the right place and with the right collector. If two collectors REALLY want your doll, and get into a bidding war, the doll might bring more. Some styles of the dolls seem to bring more than others, but I don't have statistics to back this up.
Cabbage Patch Kids dolls from the 70's are worth collecting. Today, a Cabbage Patch Kid doll may be worth at least 2,000 dollars.
How much is a 1981 new ears edition cabbage patch kid worth
A vintage Cabbage Patch Doll is not worth much money in 2014. On average, some are selling for as high as $50.
About 50 - 60 $.
About $40-$50
1p
I have three original cabbage patch dolls signed by Xavier for sell. How much are they worth?
$199..
The price depends on the year and condition. It could be anywhere from 50 to a few thousand.
roughly $2 USD
37.50 per ebay
normally it depends on what one you get! but normally around 10 bucks