@Danielsaaan the problem with your query is the starting oil strength is an unknown, so ther is no way to answer your question.
When I started making medibles for my patients (ie stoners) I needed to be more consistent so I went to rosin as my actives additive. Rosin is on average 70% actives and the rest is wax and lipids. So if you grow a 1:1 THC:CBD strain then 1 gram of rosin will be ~350mg THC ~350 mg CBD These numbers are not exact because there are other actives in cannabis yet you will be consistent from batch to batch. My chocolate molds have 25 pieces so 700mg/25pices=28mg per piece of actives. I usually use 2g of rosin to make a bar so 56mg per piece. If you grow an all THC strain then that is 56mg THC. Depending on your tolerance level 1 piece will put you on your ass.