I was on a research to figure how how the Hong Kong housing price changed from years and compare by region. Although there is the chart provided by the Rating and Valuation Department. They only provide the number with three different(Hong Kong, Kowloon and New Tertiary. And the data was come with the five category by the area of the house. But there is no index that I could use to represent the overall price change for each region, and later on to the whole SAR. In order to get the overall price change for each region, I used the data from the Rating and Valuation Department, and by weighted arithmetic to create create an overall price for each region, they I can add them together to create a overall index of whole Hong Kong. And compare that data to with another data showing the overall data. there is a note on the data I used for this is “Changes in average prices between different periods may be due to variations in the characteristics of…