Hi Everyone,
Stations Casinos have a popular promotion which awards players $50 in
free slot play if the Jumbo Jackpot hits during their play session. The
jackpot starts at 100,000 and is guaranteed to hit by 150,000.
This analysis will focus on the RTP for free slot play first then
combine the jackpot award into the RTP. If we assume the jackpot has an
equal chance to hit during any time of the day (which may not be the
case) then the win frequency for the free slot play is proportional to
the number of hours played during the month times the number of jackpot
hits per month.
The number of hours in a month assuming 30 days per month is 720 so we
have the following:
HF(FS) = (x * N) / 720, where x = number of
hours played per month
N = number of jackpots hit per month.
Our monthly EV in dollars can be then be calculated:
EV(FS) = (50 * x * N)/ 720 = 0.0694 * x * N.
Similarly for the Jumbo Jackpot assuming each active player has the same
chance to win the prize (which might not be the case) the EV is:
EV(JB) = ((125,000 * x * N) / 720 )* (1/p), where p =
number of players active
when the jackpot hits.
= (173.61 * x * N) / p.
Out total expectation for this promotion is therefore:
EV = EV(FS) + EV(JB) = x* N * (0.0694 + 173.61/p).
Now our RTP can be calculated:
RTP% = (EV / CI) * 100, where CI = Coin
in per month
CI = x * R, where
x = number of hours played per
month.
R = Coin in per hour
RTP % = (N * (6.94 + 17361/p))/R, where N = number of
jackpots hit per
month.
R = Coin in per hour
p = number of players active when
the jackpot hits.
With this formula we can now calculate how much this
promotion adds to our RTP. Let's say the jackpot hits on average 4
times per month and when it hits on average 10,000 players are active
and assume a video poker player is playing 700 hands per hour single
line game with 5 coin max bet then the table below shows the added value
this promotion has for different denominations.
denom
wager ($)
rtp (free slot play)
rtp (Jumbo)
rtp (total)
1¢
35
0.7931
0.1984
0.9916
5¢
175
0.1586
0.0397
0.1983
25¢
875
0.0317
0.0079
0.0397
50¢
1750
0.0159
0.0040
0.0198
$1
3500
0.0079
0.0020
0.0099
We see that this promotion adds more to the overall return percentage
the less you bet per hour. I would guess that a good proportion of slot
and video poker players at Station properties fall within the $175-$875
coin in per hour range. For these players (using the parameter values
from above) this promotion is essentially a cash back program which
yields ~0.2% - 0.04% respectively. Unfortunately for higher level
players the promotion doesn't offer much.
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