Plugin that allows changing Subscription price

I’ve been looking around at all the different paid-subscription plugins across the platform, but I’m having a hard time trying to find one that accomplished what I need. I’m trying to dynamically update the cost of the subscription depending on what input the user selects.
Here is an example in codepin:
https://codepen.io/KevinBunn/pen/RwwWzjw

Is there a plugin that someone knows can do something like this?
If not this exactly, what about a plugin that I can pass in a value and it will handle the bank processing and monthly subscription?

I’m new to WordPress so most advice will probably be helpful. Thank you.