That's an astonishing number, from Bloomberg sources
The population of Canada is just shy of 40 million and the workforce is around 25 million people. So nearly one-in-25 people were laid off in a single week.
Trudeau last week highlighted that a year ago, this week in March had 27,000 employment claims. This is a 34x increase.
The US system is more scattered and shutdowns haven't been as aggressive or abrupt so it's unfair to extrapolate to a single week but if you did, it would imply 7.1 million jobless claims. That's more than 10x the all time one-week record.