Calculate Monthly Stock

All your stock in that example is zero

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Good afternoon

What I need is to be able to calculate stock monthly, For example, my product xx1, on January 1 has stock 10, in January I sold 3, in February 2 and in March 1. I need to be able to visualize that information every month.

And the result would be

In my source table, I own Code, Date Movement, Income and Outputs