The house advantage (HA) is the percentage of the total amount wagered that the house "expects" to win in the long run. For example, if the house advantage is 2.7%, as in the case of roulette, it means that on average, the house can expect to win (and the player can expect to lose) 2.7% of the total volume of bets placed.
In the case of blackjack, we consider this advantage in relation to the initial bet of a player applying the basic strategy. If the HA is negative, it means that the house plays at a disadvantage (which happens when "professional" blackjack players are involved).
You mentioned that you have developed a "calculator" that, by setting the specific game rules, provides the house advantage related to those specific rules. The calculator gives four values:
1. Advantage in a game with a cut card.
2. Advantage in a game with continuous shuffling.
3. Advantage in a game with a cut card applying composition-dependent exceptions (CD).
4. Advantage in a game with continuous shuffling applying CD exceptions.
It will be online soon!