It's a bit more dramatic if you look at cost of living again as GP did. Numbeo again:
> You would need around 3,309.51$ (12,912.27zł) in Warsaw to maintain the same standard of life that you can have with 8,500.00$ in San Francisco, CA (assuming you rent in both cities).
I mean from the employer's perspective. I wouldn't have expected a "cheap" foreign labor market to be anywhere in the range paid to US workers, but maybe like 20-30% of the cheapest US worker.
> You would need around 3,309.51$ (12,912.27zł) in Warsaw to maintain the same standard of life that you can have with 8,500.00$ in San Francisco, CA (assuming you rent in both cities).