I am currently trying to create a trigger that monitors the Volume-Weighted Average Price for each selection at set intervals and I am currently investigating the formula that will be required for trigger. Now while I am aware of wom etc I wondered what the formula was being used to calculate the Weighted Average Price of a selection? There is a website that shows the figures for each selection however I can not find the formula. Name of the website is betmover and you click weight avg. to display data.