Using Memberstack 2.0? There is an updated version of this article here.
Use this data attribute to show a member their current membership's name and default price.
Display current membership name
Will appear exactly as it appears on the Memberships page and during checkout.
Display current membership price
Will populate the current membership's price as a number (e.g. 1, 55, 100) without a currency symbol or billing frequency. Note: free plans will not display any value.