an example on how to compute the opening & closing price

On many exchanges, the single price determined for the Opening and Closing Routine Price is based on the following methodology: - A buy (sell) order may be executed at a lower (higher) price. - The cumulative buy volume at any price is the buy quantity at that price, plus the sum of the buy quantities at all higher prices. - The cumulative sell volume at any price is the sell quantity at that price, plus the sum of the sell quantities at all lower prices. - A sell (buy) pressure occurs when the cumulative sell (buy) volume exceeds the buy (sell) volume at a particular price. - The tradable volume at any price is the smaller of the cumulative buy/sell volume. - The price overlap is the range of prices where tradable volumes are possible. - The equilibrium is the price range within the price overlap where buy pressure changes to sell pressure. The equilibrium price is one of the following: - The price within the equilibrium that has the largest trade volume, or - If there is no unique price, the average of all prices within the equilibrium with the maximum trade volume, or - The average is rounded to the next multiple of the minimum price multiple for this stock in the direction of the previous day. - If there is no settlement price, the average price is rounded to the next highest price multiple. In this case, the Opening price will be $0.285 with 5,000 shares being matched (as 5,000 is the higher of the two tradable volumes when the sell pressure changes to buy pressure).