From Dorsey’s Twitter goodbye to Nissan’s electric vehicle acceleration. This is the Week in Numbers.10% is how much Twitter shares surged earlier this week. It happened after company CEO and co-founder Jack Dorsey announced he would step down from his role. Dorsey will now focus on his job as chief executive of digital payments company Square, which also announced this week it would rename itself Block – a reference to blockchain and cryptocurrency.$17.59 billion is the amount Nissan plans to spend as it accelerates towards electrification. It is the first time the Japanese automaker has revealed a comprehensive electric plan. Nissan said it aims to spend the money over five years.Company COO Ashwani Gupta.”It’s very important for Nissan to show where we are going next. And today’s the plan. It’s a vision. It’s a direction which is talking about (the) future with strategic priorities, and one of the strategic priorities is electrification.”179.8 million is the confirmed number of U.S. shoppers who bought in stores and online from Thanksgiving Day through Cyber Monday.The survey from the National Retail Federation showed the numbers were down from 186.4 million a year before.Online shopping took a hit – it was down 12% on the year; but on the bright side, in-store foot traffic rose just under 14% from a year ago.9% is the tumble shares in troubled developer China Evergrande saw on Monday. The fall came after the firm’s chairman Hui Ka Yan sold 1.2 billion shares, raising around $344 million. Investors continue to worry about the property firm’s ability to pay back more than $300 billion in liabilities.20% is the fall ride-hailing app Grab saw for its shares on its Nasdaq debut. It followed the company’s record $40 billion merger with a blank-check company and was the biggest U.S. listing of a Southeast Asian company. The price might have dropped, but Chief Executive Anthony Tan said he’d celebrate regardless and then get back to work.