I have been tracking the "Drop Rate" of several "full pay" machines
while playing Deuces Wild. This is a good way to assess your return
and is very easy to calculate. The basic formula is:
DROP RATE = 1 + (amount won or lost (excluding jackpots) divided by
amount cycled through the machine) EXAMPLE:
You note your starting point total, say 18496, you play for several
hours and note your ending point total of 22613. You subtract your
starting points from ending points 22613-18496 = 4207 since each
point equals $1 cycled through the machine at your casino, you have played
$4207 this session. This is the divisor (lower number in the formula)
During this session you put $200 in the machine. You also hit 4 Deuces
for a $250 jackpot. When you cashed out you received $171.50, in our
example. The upper number is $200 (cash in) minus $171.50 (cash out)
minus any jackpots ($250 for the deuces) $200 - $171.50 - $250 =
-$278.50. So now you have the two numbers you need to calculate your
Drop Rate 1 + ( -278/4207) = 1 + (-.06608) = .93392 or 93.392%
The correct Drop Rate for full pay Deuces Wild is 94.922, as derived
from Bob Dancer's Win Poker game analysis. This means that if you play
perfectly and do not hit any jackpots, it will cost you $50.78 per
$1000