m at short handed table

if 3 people got knocked out, and your table only had 7 players would you count your m as blinds plus seven antes, or knowing that eventually the tables will be rebalanced to 10 players do you always calculate your M for a full table?

7 players, It is your stack over money in the pot before any action

thanks

Dan Harrington discusses this in his 2nd book (The Endgame), and calls it "Effective M". In an SNG or at a FT, you could calculate your Effective M by taking your normal M, multiplying by the number of players at the tabling, and dividing by 10-- he acknowledges that most tables have 9 original people and not 10, but that makes the math more difficult where precision is not as important.

For example, if you are on the bubble of an SNG with a stack of 2000 and blinds at 100/200, your M is 2000/300 = 6.67, but your Effective M is 6.67 x 0.40 = apx 2.67. This may seem very small, but considering how quick the orbits now are, you really have very few opportunities to get your stack in before your all-in becomes a trivial call for your opponents. Also consider that in this situation, you're probably the short stack, which should also impact your decision making.

I found this on search engine and thought it would help u with ur doubts...
Here it is...





Harrington further develops the concept to account for shortening tables, as is seen at the closing stages of multi-table tournaments. The M-ratio is simply multiplied by the percentage of players remaining at the table, assuming a ten-player table to be "full".
Therefore, for a player with an "simple M ratio" of 9 at a five player table, the effective M is 4.5:
This means that although the player's simple M value places him in the orange zone, his effective M dictates a shift in playing style appropriate for the red zone. In essence, ten times the effective M denotes the expected number of hands a player can let pass before running out of chips.

https://www.cardschat.com/forum/general-poker-13/m-calculator-161036/

A 'M Calculator' I threw together in C#. I need to start working on more poker programming projects -- anyone have any ideas?