Effective RB when you have bonus + RB at UB?

[Drjamescrow]

I know at UB 25% of bonuses are deducted from MGR but that really isn't much since their bonuses clear very slowly. Does anyone know how to figure out what your effective rakeback is with bonus + RB there? I would work this out myself but I'm not sure how to do the math.

[UBRAKE.com]

Im only guessing at this, but say if you get 28% rb and do 1k in mgr and clear a $100 bonus...you say 25% is deducted so I would imagine 1,000 (.28)= $280 - 25 = $255

[WarBus]

[ QUOTE ]
Im only guessing at this, but say if you get 28% rb and do 1k in mgr and clear a $100 bonus...you say 25% is deducted so I would imagine 1,000 (.28)= $280 - 25 = $255

[/ QUOTE ]

This doesn't seem right.

Most sites deduct a bonus from MGR.
So 1k MGR - 100 bonus = 900 * RB%

At UB wouldn't it be:
1k MGR - 25 (25%*100) = 975 * 28% = 273

[DuckTheRake.com]

I believe is like this, using the same numbers.

1000 MGR, 100 Bonus, 28%RB.

[1000-(.25)(100)]*.28= 273 in rakeback +100 In bonus.

Total $373 or 37.3%.

[flight2q]

effectiveRB = (bonus+28%(rakeshare-bonus/4))/rakeshare
effectiveRB = 28% + 93% * bonus/rakeshare

FWIW, at fixed limit short handed holdem
1/2 -> 66%
2/4 -> 51%
3/6 -> 46% (estimate)
5/10 -> 41% (estimate)