How to Add timesheet daily hours activity wise

In monthly timesheet i have fill information like how many hours a day I worked for each project and under which function / department I provided support e.g Procurement, HR, Finance etc

For example on day 1 I worked 2 hours for Project 1 in Procurement Department, another 2 hours for project 2 in Finance department and 4 hour for Project 3 again in Procurement department.

Now I want that for Project 1 total hours should be calculated department wise like how total hours I supported project 1 in Finance activity, how many in procurement etc.

I have attached the excel sheet which have all the data and I need the formula for calculation of hours activity wise in cell BM, BN, BO, BP, BQ, BR.

Will be grateful for support