I think I got it.
(base+shield) * (1+ambush) * (1+backstab) * (1+killing blow) * [ (1+weapon bonus) * (1 + deception + iron hand + counter strike + rising shot + be like water + followthrough + COM + BAR) + RELIC] * (1+execute) * (1+slag) * (1+crit) * (1+deathmark)
Level 72
(132,641+811,763)(1+.40)(1+.80)(1+0)(1+2)[(1+5.66+.15+0+0+0+0+0+.60+0)+0](1+1)(1+2)(1+0)*(1+.80) = 582,941,781 melee damage
I can’t find enough deception percentage discussion but i think I am getting only 566% deception damage bonus and not the full 650% (i think you can only get the full damage if the timer reads 0.00 secs).
5 secs - 230%
4 secs - 314%
3 secs - 398%
2 secs - 482%
1 sec - 566%
0 sec - 650%
I seem also not to get the best of Counter Striker, Rising Shot and Be Like Water in deception since they decay before I execute. For Like The Wind, as long as I can hold the movement button it procs but still unreliable.
from the old forums
https://web.archive.org/web/20150502124355/http://oldforums.gearboxsoftware.com:80/showthread.php?t=254652
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PS4…REPRESENT 
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