I actually wonder how much labor costs impacts profitability. I need to look at the financial reports. But if it (worker salary) is a small part, maybe improvin

I actually wonder how much labor costs impacts profitability. I need to look at the financial reports. But if it (worker salary) is a small part, maybe improving the 1:2 production ratio could be more useful? Is there any reason Chinese workers are producing double the number of cars per worker? Does the Chinese super factories have better automation?