Calculating win percents (1%)

[Lukeidiot]

Hello people of PHPFreaks.

 

I am trying to calculate win percents that are 1% in my favor (house edge).

 

Here are the variables:

 

Game Type (1 = over, 0 = under)

Game Number:(49.50) (game type 1 to win if your roll is OVER 49.50 :::::: game type 0 to win if your roll is UNDER 50.50)

 

Multiplier: Any number between 1 and 9900

 

Preview of panel: (www.dice.sx for live example)

 

What I am trying to calculate is the chance with a 1% house edge. How do I go by this?

 

Here is what I have so far (which doesnt really work)

<?php

$type = 1;
$game_int = 50;

$roll = 70;
$bet = 100;



	//Get payout
	if($type == 1){

		$chance = (100 - $game_int);
		
		$multiplier = round((100 / $chance), 5);

		if($roll > $game_int){
			$result = 1;
			$payout = round($bet * $multiplier, 5);
			echo "Type: $type - Payout: $payout - Chance: $chance - Multiplier: $multiplier - Game: $game_int - Bet: $bet";
		} else {
			$result = 0;
			$payout = round($bet, 5);
			echo "Lose: $bet";
		}

	} else {

		$chance = $game_int;
		$multiplier = (100 / $chance);

		if($roll < $game_int){
			$result = 1;
			$payout = round($bet * $multiplier, 5);
			echo "Type: $type - Payout: $payout - Chance: $chance - Multiplier: $multipler - Game: $game_int - Bet: $bet";
		} else {
			$result = 0;
			$payout = round($bet, 5);
			echo "Lose: $bet";
		}

	}

?>