At that point in time there will be no rounding.
With tax calculated into the price…
If something sells for $1.00 it will be $1.00 at the register.
If it’s $1.05 it will be $1.05
When it comes to calculate taxes for business in the quarter and file all those forms the checks/calculations will be digital and accounted exact down to a penny since there is no cash involved.
If business wants to be a dick and make prices such as $.93/.95/.98/.99 etc finicky customers that bitch and moan about everything won’t be too fond of that, so many won’t.