1st time apartment renter…is $300 too much for an electric bill in a 995 sqft unit?

I have no idea what’s normal and what’s not…I think the rate is 23¢/kwh. I know it’s summer and the AC is blasting, but is this normal for 1 person and occasional guest?? The secondary drain of our AC has been leaking which indicates a clog, but that was recently fixed. Would this affect its efficiency?