Any
This is simply the amount of money in your bank account. [1]
A positive net cash balance indicates that money is present and available in the account, while a negative one indicates that the account is overdrawn. [2]
[1] Retrieved May 21, 2021, from https://financial-dictionary.thefreedictionary.com/Cash+Balance
[2] Berry, T., O'Rourke, A., Soto, A., & Tim, B. Calculating the Cash Balance. Retrieved May 21, 2021, from https://articles.bplans.com/calculating-the-cash-balance/