自己解答一下。多少gross income multiplier在商业地产上比较常见？

DEFINITION of 'Gross Income Multiplier'
A rough measure of the value of an investment property that is obtained by dividing the property's sale price by its gross annual rental income. GIM is used in valuing commercial real estate, such as shopping centers and apartment complexes, but is limited in that it does not consider the cost of factors such as utilities, taxes, maintenance and vacancies. Other, more detailed methods commonly used to value commercial properties include capitalization rate (cap rate) and the discounted cash flow method.

http://www.investopedia.com/terms/g/gross-income-multiplier.asp