I have two tables. Purchases and Expenses, which tracks all my expenses (using date, amount, description, value, etc) and Account Tracker, which, based on Purchases and Expenses, calculates all my current balance (for checkings accounts) and remaining balance (for credit accounts).
I want to create a financial burndown chart, with the current/remaining balance for Y-axis and the expense date for the X-axis, but I have no idea how to do that. Can you help me?