What to set inside is Pricing and Availability when using subscription?

I have setup Subscription price group which includes Annual subscription and monthly subscription

How do I handle the Pricing and Availability section in the App considering I am relying on with subscription purchases? I currently have it set to $0. I cannot delete the $0 Price if it is incorrect. I cannot add more than 1 price to this section.

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What to set inside is Pricing and Availability when using subscription?
 
 
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