about a 60% decrease in weight is what i usually see after drying. looks really good tho nice and fat haha
You're on Crack bud.
You will have around 44 grams (24%) after drying and curing if done properly and get rid of large stocks etc. And if that 6.5 oz was the weight of trimmed wet bud.
23-25% of wet weight is the average return. You have lot's of stock in that pic though so if you remove the stock then just weigh the wet buds you will get a better idea of your dry bud return weight.
If you wanna keep a nice smell and even dryness to your weed though you should decrease your temp your drying in and increase the humidity. Ideal is 62-63F and 50% humidity.
You can enclose the buds a bit with some plastic or glass to increase the humidity. Just make sure there is air getting out though. Or slightly close them in a paper bag to slow drying down.