Optimax provides quality HD video systems and modern IP phone systems。

Optimax  systems have been installed in homes, banks, retail stores, hospitals, and restaurants.  We minimize our operation costs and pass the savings to you.  We guarantee the lowest price on all our services, please call for free estimate. 

Please feel free to contact us.  Monday - Friday: 7am - 5 pm Pacific Standard Time.

 

Optimax Enterprise Inc.

9436 La Rosa Dr. Temple City, CA 91780

Tel: 626-297-1344; 626-380-2328

telecom@optimax123.com

 

投资房地产的回报率

Details

https://www.investopedia.com/ask/answers/060415/what-average-annual-return-typical-long-term-investment-real-estate-sector.asp

 

https://www.trulia.com/real_estate/Los_Angeles-California/market-trends/

 

Rental income -(mortgage interest + insurance + repair + property tax) = gain (return) from  payment = G(x)

G(X) / purchase cost = Annual Gn %

Gn% + 5% = annual rate of return of property in Los Angeles 

 The only controllable expense is mortgage expenses, if  you have put down more cash, less mortgage interest, then you have higher Gn%