Wim plast

Can anyone bring good points on why the stock is keep correcting till the level of 550 from 1100 range. Promoter stack decreased but that is too minor and in 2016 end. Last three qtr profit come to single digit comparatively to 2017. Is it the main reason, but that is also ok, as the entire market is weak due to GST and Demonetization. Please share if anyone have good insight on wimplast.