A restriction change of this significance should involve a lawyer to prepare the resolution and necessary bylaw wording before the vote so that everyone knows all the potential implications and you're not left scrambling to figure it out afterwards.
EDIT: Unfortunately you can't always rely on the property manager to give you sound guidance here. In our strata where we lifted the age restriction the property manager insisted that we didn't need a separate commercial vote.
In the last condo I owned a vote was taken with intention of restricting rentals. The poorly worded resolution resulted in NO rental restrictions. Oops!
And don't get me started on the lack of competency of some property managers.