Asymetric committal altitude is just normal decision ht 200' plus EOA depending on speed.
When initiating a go around single engine the power has to be increased before the pitch up action to allow an initial accelaration, if pitch is increased first the a/c will decelarate and if you are close to blue line trouble will ensue.
Therefore, the aircraft will continue to descend during this power increase. Typically it takes 80-100' of further descent for this accelaration this is the engine out allowance.
So, the asymetric go around ht is dependent on approach speed.
It should 200' unless 10kts above, at or below blue line in which case 100' should be added making 300' to commit or initiate.