Multi year budgets v actual

Hi all, new to power BI and need some help with the intial setup for a dashboard - Essentially this is a budget to expense report.

I have 2 fact tables:

1: Budget = Budget data is on an annual basis broken down by departments and sub departments

2: Transactions = The expense transactions are on a daily basis

At any given time i want to compare the actual expenses for a department or sub department to its annual budget - i.e in 2022 i want to compare the annual budget for Department A (700 in total) to the actual expenses from the daily expenses .. i would also like to further break this down and see the sub department budgets to their expenses.

This is my initial setp up:

 I am having issues around comparing annual budgets to daily transaction amounts and then slicing by departments or sub departments.

Any advice on how to struture my fact tables and create the relationships will be much appreciated.

Thanks in advance