Calculation Of Multiple Form Values

Hi, please forgive me if this sounds like a nonsence question, i have created multiple forms in CF7 and what i would like to do is show balances dependant on what values have been submitted in the other forms. These values need to be calculated + – / % etc to display a true value. Is this possible ? i have read the documentation and my head is pointing to the Transfor functions but i wouldnt know where to start. Thanks in advance

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