
Advanced Statistics Advanced Probability and Statistics Math Forum 
 LinkBack  Thread Tools  Display Modes 
September 29th, 2014, 05:27 AM  #1  
Newbie Joined: Sep 2014 From: Athens Posts: 1 Thanks: 0  Payout percentage of a slot with free spins and changing multiplier
Hello community of mymathforum, I have run into a problem that I can't solve, hopefully somebody here knows the answer or he/she can point me to the right direction. I'm writing a tool to test a slot game. I don't know the reels (symbols composing the reels) of the game, but through my tool, I can collect all (hopefully (Tongueout)) of the information I need. The thing that I'm missing is the formula to calculate the payout percentage. The game has reelset for the "main" game and another one for the "free spins". I calculate the PoP of the main game which is 60.746115 %. Every time a free spin is triggered is gives the player 15 free spins. The free spins have an initial multiplier by 2 (first time they get triggered in the main reelset). So every win combination in here gets multiplied by 2. Every time a free spin is retriggered in the initial free spins round (free spins reelset) the multiplier gets up by one. So if the initial trigger of free spins is 2 if it retriggers it becomes 3, and if it retriggers again it becomes 4, and so on. The probability of a free spin to be triggered from a normal reelset is 0.05859375 The probability of a free spin to be retriggered from a free spin reelset is 0.2447047766 The virtual PoP of free spins (virtual because you don't spend any actual credits in them) is 162.1783335454 if you don't count the 2 multiplier or 324.3566670908 with the multiplier (2). Up to now I can get the PoP of a game where the multiplier is stable throughout the retriggers. But in this game thing are different. By the way here is the output the tester gives me Quote:
Last edited by uruz7; September 29th, 2014 at 05:32 AM.  
September 29th, 2014, 09:25 AM  #2 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 937 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms 
I don't know enough about slots to help you.


Tags 
changing, free, free spins, multiplier, payout, percentage, slot, spins 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Need help on slot machine calculation  Login  Elementary Math  4  May 6th, 2014 01:44 PM 
formula for calculating an changing percentage  Leander  Applied Math  0  February 3rd, 2012 02:04 PM 
3 Reel slot odds!  NTAHS  Advanced Statistics  24  March 8th, 2010 07:01 AM 
Expected Payout  inequality  Algebra  5  November 9th, 2009 09:08 PM 
Payout Formula  Dwish1372  Calculus  3  January 9th, 2008 01:02 PM 