alt Hacker NewsLooking at https://pmc.ncbi.nlm.nih.gov/articles/PMC11733696/ it seems like the base rate was 0.04 per 100,000. So ~70 female deaths per year in a population the size of the USA. That link suggests the mortality rate was reduced by a factor of 2-4, so vaccinating 2 million (?) girls per year saves 30-50 lives.
Some back-of-the-napkin math puts the price tag per life saved in the 8 digit range.
The problem with armchair back of the napkin math is that you make elementary mistakes like comparing the cost of a vaccine that provides decades of protection to the mortality statistics from a single year.