[Membership 2 Pro] Modifying Subscription Prices in Membership 2 Pro

My client wanted to modify the price of one of her membership subscriptions, and did this manually in Stripe. Naturally, it didn't update the price for existing subscribers, only for new ones. I've found how to edit the subscription for the user in stripe, so my question is more for future reference. What is best practice for changing a subscription price? Will running &fixsub=1 in the settings page update the subscriptions for current members? Is there a way change the price so it will effect all members automatically, instead of doing it manually, one-by-one in stripe?