Thank you PH-UKU, that's just what I was going to point out.
Anyway, this isn't my formula but the formula approved by the BEC/management team.
Don't blame me if it doesn't make any sense, I just ran the figures through their model.
If there are significant flaws with it, it will affect everyone (with MACC being a big loser especially), to some degree, directly in their back pockets.