Hi, landlord here. Quick explanation: Prorated rent is used when you move into an apartment in the middle of the month. You already paid first month rent, but since the month was half over, the amount you paid will also cover some of next month. The prorated rent is the amount you still owe for the remainder of next month. That is not in addition to 650, it is in place of it.

So your rent that is due in March will be the prorated amount. In April you will resume normal rent payments.

Hope that helps!