Berkshire Hathaway Inc (BRKa.N) (BRKb.N) has seen a big upswing in all of its businesses starting in March, billionaire Warren Buffett said in an interview with Fox Business Network.

“What a difference a year makes, yes,” Buffett told Fox Business Network anchor Liz Claman. The interview will be aired on Friday morning.

“And we have seen in all our businesses a big upswing starting in March. It was creeping up a little until then, but in March, around the world, we saw real — a real change,” he added.

Buffet said on Tuesday night alone, Berkshire’s unit Furniture Mart transacted US$5.2 million ($7.1 million) worth of business.

“Now, on a normal Tuesday, we do US$700,000. So it was US$5.2 million, which was up 54% from a year ago,” Buffett said.

Buffett said most of the business upswing was seen in the United States and Asia Pacific but not much in Europe.

Berkshire Hathaway will hold its annual shareholder meeting on Saturday in Omaha, Nebraska.

The meeting attracted 35,000 people last year. Along with the annual meeting for Wal-Mart Stores Inc (WMT.N), it is one of the most heavily anticipated and attended galas in corporate America, drawing investors and media from all over the world.