Bed Bath & Beyond surged nearly 80 percent in Tuesday’s after-hours trading session on the heels of three new announcements from the company outlining strategic plans to help with its turnaround. Here are the details traders and investors should know. Share Buyback Bed Bath & Beyond increased the amount of its three-year share buyback to $1 billion, up from a previous $325 million figure. The company said the $1 billion in buybacks will be completed by the end of fiscal 2021. The completion of the buyback will come two years ahead of schedule. To date, the company has bought back $600 million in shares since the end of fiscal 2020. The company will complete the additional $400 million remaining on the buyback over the third and fourth quarters. “We remain committed to our capital allocation framework of delivering strong and sustainable total shareholder return,” said Bed Bath & Beyond CEO …