The "Rake" is the percentage of the pot that goes to the house. Microgaming's Poker Network uses a fixed schedule for its rake, based on the table limit and number of players.
Limit tables, up to, but not including $0.10/$0.20
# of Players
$0.10 pot
$0.25 pot
$0.40 pot
$0.55 pot
$0.70 pot
$0.85 pot
$1.00
Max
2-10
$0.01
$0.01
$0.01
$0.01
$0.01
$0.01
$0.01
$0.07
Limit tables, $0.10/$0.20 up to, but not including $0.50/$1
# of Players
$0.50 pot
$1 Pot
$2 Pot
$3 Pot
$4 Pot
$5 Pot
Max
2-10
$0.05
$0.05
$0.05
$0.05
$0.05
$0.05
$0.30
Limit tables, $0.50/$1 up to, but not including $2/$4
# of Players
$5 pot
$10 Pot
$15 Pot
$20 Pot
$25 Pot
$30 Pot
Max
2-10
$0.25
$0.25
$0.25
$0.25
$0.25
$0.25
$1.50
Limit tables, $2/$4 up to, but not including $15/$30
# of Players
$20 pot
$30 Pot
$40 Pot
$50 Pot
$60 Pot
Max
2-3
$1
-
-
-
-
$1
4-5
$1
$0.50
$0.50
-
-
$2
6-10
$1
$0.50
$0.50
$0.50
$0.50
$3
Limit tables, $15/$30 and greater
# of Players
$40 pot
$55 Pot
$70 Pot
$85 Pot
$100 Pot
Max
2 -3
$1
-
-
-
-
$1
4-5
$1
$0.50
$0.50
-
-
$2
6-10
$1
$0.50
$0.50
$0.50
$0.50
$3
One on One Fixed Limit Tables
# of Players
$5 pot
$12 Pot
$20 Pot
Max
2
$0.50
$0.25
$0.25
$1
Pot Limit / No Limit Tables
PL/NL tables, with blinds up to, but not including $0.05/$0.10
# of Players
$0.10 pot
$0.25 pot
$0.40 pot
$0.55 pot
$0.75 pot
$0.80 pot
$1.00
Max
2-10
$0.01
$0.01
$0.01
$0.01
$0.01
$0.01
$0.01
$1.50
PL/NL tables, with blinds $0.05/$0.10 up to, but not including $0.25/$0.50
# of Players
$0.50 pot
$1 pot
$2 pot
$3 pot
$4 pot
$5 pot
Max
2-10
$0.05
$0.05
$0.05
$0.05
$0.05
$0.05
$0.30
All Pot Limit and No Limit tables, with blinds $0.25/$0.50 and up