There is no simple solution because each situation is so different.
The accident settlement value usually consists of following elements:
-- medical bills
-- lost income
-- pain and suffering damages
In most situation - it is relatively simple to fund out your medical expenses and lost income - these are out-of-pocket expenses (so-called "specials").
If there is no serious or permanent injuries and the fault is clear - the accident settlement value is estimates by multiplying "specials" by the number between 1 1/2 and 4, depending on the circumstances of your case.
For example, if your medical bills and lost wages were $35,273(specials).
Depending on the other facts in the case, the accident settlement value of your claim is somewhere between $35,273*1.5 and $35,273*4 - or between $59910 and $141,090.
Let me know if you need any help.