Please help me Prepare monthly and yearly cash flow for 5 years.

There are total of 20 apartments and each apartment rent will be 650$

Assume building will have 100% vacancy for 2 months after construction is completed

3 months = 40% occupancy

4 months = 80% occupancy

5 months = 100% occupancy

Maintenance cost will be 3% yearly on total yearly revenue

Prepare monthly and yearly cash flow for 5 years.