Hengda Real Estate is the main body of Hengda's first A-share listing in China. In December 2016, May 2017, and November 2017, the company strategically introduced three batches of investors, injecting a total of 300 billion yuan, 400 billion yuan, and 600 billion yuan into the market. How much did it raise in the November 2017 batch? Please provide a JSON showing the details. Don’t include any explanations.