用电脑回复一下，手机不方便

Gain 330K-250K = 80K    Total wrong, you need add repair cost $60k, closing cost 20k, loan cost 3k, holding cost at lease 4k. 

Gain $330K-250K-60K-20K-3K-4k=- 7k. Loss 7k here.
Investment： 110K  (50K + 60K)
Return： 73%  假设半年的时间
Annualized Return：200% ！！！
 
租出去时间越长，数字越来越低。