I want to set up multiple payout accounts for different regions.
I need to add multiple accounts on my payout form.
I want to deposit my earnings to separate accounts from the different regions.
This depends on your payout method. Roku pays out in the currency it was sold in, so you would be paid in Canadian dollars, however, your payout method, i.e. bank transfer/PayPal may do the conversion when you cash out.
If you price it at $3.99 on the USA store, it will sell for $3.99 CAD in Canada.