it was bagseed. yes a 1000w. i dont keep scales around, but that being my first i did borrow some scales. if i remember right wet it was 290g. gave the scales back before it dried. i would say weight loss due to water loss would be around 50%-60%. but really all harvest are different, bud formation, drying process and many other factors would effect loss, i would think.
here is a link to the grow of that plant. the buzz ended up better after i cured it for about a month, but even then it was not that good. i think the plant blew its wad before i even got it. it was budding when i brought it home. it was a wispy sad little bud.
http://www.marijuanagrowing.eu/first-grow-pics-advice-wanted-t30774-120.html