first of all do you know what is the diff. between weight average and typical price?
the price went down to 1.183 three days before the board quit following the revelations. about 46% lose and then the price started to go up gradually.
last day tradings
weight average= 1.8
typical price=1.92
as you can see there is a diff between the two and the most important one here is the last deal price(typical price=1.92) which will change your above calculations (cut and paste one)
wieght average = 1.81 will be used in 2 main things
1- it gives u the price ranges during the tradings (highest+lowest+closing/3)
2- it will be used to specify the upper and lower limits for the price next tading day.
check this site to have a clue
http://investing.reuters.co.uk/stocks/quote.aspx?symbol=JUVE.MI
so the highest price was =2.465
the lowest was = 1.11
so the total lost is = 45%
last deal price(typical price) is = 1.92
compared to the lowest price it means that the price gained about 0.81Eu
so the stock lost about 1.355 Eu at first (2.465-1.11=1.355) and after the last trading day the price went up to 1.92 which means (2.2465-1.92=0.3265) which means that the present price is less than the highest price recorded over the last months by only 14.5% which means that if the stocks kept on moving in the same up trend direction with the same volatility (hope so) it will needs 2 or three days to reach its previous high which is 2.2465
now make your calculations again bro