Sounds to me like your pricing policy is out of whack. If nic cost $1 a mg and you used the same amount of flavour in every juice (say $5)....
3mg = $8 ($3 + $5)
6mg = $11
9mg = $14 and so on.
You'd then make just the same amount of money whatever you sold.
No?
T
The decision has nothing to do with the cost per bottle - the amount of nicotine in every bottle is almost irrelevant from a cost perspective.
20% refers to the fact that we presently carry (5) different nicotine levels, 0 - 3 - 6 - 12 - 18. When we order liquid at present, 20% of our order is 18mg, and that 20% doesn't sell well because so few people vape it. Ergo, if we were to remove 12 and 18, we would be reducing our stock by 40%. Or, if we measured the remove of 12mg after the complete removal of 18mg, it would be a 25% reduction in stock level. There's no scenario where a business wants to produce product people don't want - which is the case as demonstrated by the fact that so few people purchase 18mg. Yes, there's a handful - but - there are lots of options in the marketplace for people who want more nicotine. (Including nic'ing up our liquid if you really want).
It's also a liability issue - the less nicotine we put in the bottle, the less dangerous it is if little hands were to get their hands on it. Win-win... we liquidate product that doesn't sell, we lower our liability, and we discontinue ordering and making product that sells abysmally slow.