Yes I do mean multiplication of share price by volume at this price.
Volume is quite meaningless, turnover has context.
A 5c stock can have high volume but when you analyse it, only has $100,000 turnover for the day.
In order to guage if a stock has the public's interest, turnover is what to look for.
When looking at a price chart for example a stock may go from $1 to $5 over 2 years, now if volume remains constant, turnover has increased 5 fold.
If you run searches over stocks, looking for potential contenders, you need to weed out low turnover stocks, volume alone wont give you that information.
When doing searches for contenders, I may wish to look for turnover drying up (often portends a breakout). Now over a long term lookback, price may have moved considerably downward, you can see price drying up by measuring turnover, not volume, as the price and volume alone masks the turnover drying up.
All my charts in Amibroker have turnover bars coded in, not volume bars displayed.
Hope this helps.