You shouldn't be down voted. Regardless of the moral or technical issues involved, there are established formulas used to calculate damages in wrongful death civil suits. Your range is generally correct although certain factors can push it higher. (Punitive damages are a separate issue.)
I generally don't complain about being downvoted, but it is always puzzling when I post a neutral fact without any judgement.
There are not "established formulas" or, to the extent that they are, the coefficients and exponents are not determined. The parties always argue about the discount rates and whatnot.