Determining a mobs level

[Busher]

Could someone post the formula for determining a mobs level by it's max hit? Can't remember exactly and can't find it anywhere. Thanks

[Izmael]

For Kunark and other than the exceptions, a lvl 50 mob hits for 140, level 45 mob hits for 120 and a level 40 mob hits for 100.

I think 123 is a level 46 mob.