From a Chinese giant on the brink, to a stock market ace from Roger Federer, this is the Week in Numbers. First up...$305 billion is the pile of liabilities weighing on Chinese property giant Evergrande. Amid warnings that it could collapse, investors and vendors this week protested at company HQ, demanding their money back."I'm at Evergrande now. I feel like a beggar."Markets and mandarins are jittery too. If Evergrande does go down, no one is quite sure what might go down with it.About $11 billion is the price of Roger Federer's shoes. Or it was the debut-day value of On - the sneaker brand that counts the tennis ace as an investor. Shares in the Swiss firm popped 50% on their first day of trade in New York. 43,610 is how many new jets Boeing thinks the world's airlines will buy over the next 20 years, up 500 on a prediction it made in the depths of the global health crisis. That would be business worth around $7.2 trillion. $60 billion dollars is how much Microsoft will spend buying back shares. That comes after similar moves by fellow tech titans Apple and Alphabet. And it gets in ahead of proposals by Democrat lawmakers to tax stock buybacks to help fund infrastructure investment. And 20,000 miles is the length of the new super railway in North America. That after Canadian Pacific struck a $27.2 billion deal to buy Kansas City Southern. That creates the first direct railroad connecting Canada, the U.S. and Mexico. It also ended a high-stakes bid battle with rival Canadian National.