Earlier in January, Tesla Inc (NASDAQ: TSLA) announced a significant pay raise for its factory workers across the U.S. According to internal documents obtained by Business Insider, the pay rates for Tesla factory workers now range from $22 to $39 per hour, reflecting the company’s adjustment to the cost of living in different regions. The pay structure is divided into three tiers, correlating with the geographical cost of living, with workers at Tesla’s Austin, Texas, and Sparks, Nevada, locations on the lower end, and those in Fremont and Palo Alto, California, on the higher end. According to…