I make alcohol tincture with 98% Everclear and decarbed concentrate. There are 591 drops in a dropper ounce. My goal is 10 mg THC per drop. So I need 5,910 mg THC from concentrate to reach 10 mg/drop. Legal concentrate in my state lists percentage of THC/gram. 1 gram = 1000 mgs, so 80% THC...