How PlayStation Plus & PS Now Subs and Cards Convert to PS+ Premium

Those PlayStation Plus and PS Now cards all convert differently to the new PlayStation Plus Premium and the other tier levels.
Gonna need a calculator for this one

Sony Set to Combine PS Plus and PS Now to Create Xbox Game Pass Competitor on PS5, PS4

How to get PlayStation Plus without a credit card - Quora

PlayStation Plus 12-Month Subscription Price Increased

I went to downgrade to essential considering I only had premium due to having PSNow for a year before, but I notice it claims my next payment is $59.99 and it has

PlayStation Plus

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How PlayStation Plus & PS Now Subs and Cards Convert to PS+ Premium

PS Plus, PS Now Subscription Transfer Explained

PlayStation®Plus Hundreds of games to download and play, PlayStation classics, game trials and more

PlayStation Plus: 12 Month Membership - Essential £33.34 / Extra £53.70 with ShopTo PSN Credit @ Playstation Store

How PlayStation Plus & PS Now Subs and Cards Convert to PS+ Premium