我把它們的區別放在這裏，這樣大家一看就明白了。

ROI

• Use for property with or without a rental income
• ROI = Annual Return / Total Investment
• Measures overall rate of return including mortgage payment and capital expenses
• ROI varies based on the down payment or amount of cash invested

Cap Rate

• Use for income-producing property
• Cap Rate = NOI / Market value
• Measures rate of return excluding mortgage payment and capital expenses
• Cap rate does not change based on the down payment or cash invested