But if you see that an employee in SF makes 120k, and an employee in Berlin makes 90k, for the same role, you can calculate the "location factor" they are using

But if you see that an employee in SF makes 120k, and an employee in Berlin makes 90k, for the same role, you can calculate the "location factor" they are using, and as this is proprietary (as per the previous comment), that data cannot be published