After doing some extensive research, Fast Companys Thor Benson came up with around $50. He reached that number by comparing the estimated cost of marijuana production (about $2 to $3 per gram) with common industry margins (rumored to be between 40 percent and 50 percent) and factoring in the economies of scale wielded by large companies like Marlboro. Benson even sought input from Jeff Caldwell, a representative from Marlboros parent company, but Caldwell wouldnt speculate on the potential costs of joint packs.