Weighted Average Statistics


I have a portfolio of stocks for which I want to calculate some asset-weighted statistics (the weights being the proportion of each stock in the portfolio).

These metrics, available for each stock in the portfolio, fall into three broad groups:

1. Ratios (like the Price/Earnings Ratio)

2. Growth Rates (like the % change in Sales from one year to the next)

3. Yields (like the Dividend Yield, the latest dividend per share expressed as a % of the current stock price)

I'm struggling to decide which metric to use to calculate the weighted average portfolio value for each of the above groups.

For the Ratios it seems to be pretty clear from a Google search that a weighted harmonic average is the way to go.

Can someone please confirm whether or not this is correct and which is best to use for the Growth Rates and Yields?