how to calculate house investment gain?

來源: 2012-09-21 16:07:58 [舊帖] [給我悄悄話] 本文已被閱讀:

house price: 100,000.downpay 20,000. monthly mortage: can someone give me a number?. rent: 1000. how to calculate gain?

then how to calculate gain if buy house by cash?