Is it OK to report a rental loss?

I have a two bedroom apartment, rented a room out to a friend in 2022 for 8 months.

Base on the tax guideline, I assumed a 30% area usage, the cost would be:

(mortgage interest  + utilities + apartment management fee) x 30%  x 8/12 

The cost was slightly greater than the rent. 

Is it OK for me to report a rental loss? or simply don't report it?