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Calculation is Form Calculation widget of your form is set correctly, but field is not calculation because you did not assigned calculation values to your Matrix fields.
Inside of this guide you can find How to Perform Form Calculation in the Matrix Field:
Also here is my demo form: https://form.jotform.com/70396009948971
I have set calculation values inside of my form like this.
Feel free to test it and clone it.
Hope this will help. Let us know if you need further assistance.