Формулы в превью матча - JoomLeague

/**
	 * Calculates chances between 2 team
	 * Code is from LMO, all credits go to the LMO developers
	 * @return array
	 */

	function getChances()
	{
		$home=$this->getHomeRanked();	
		$away=$this->getAwayRanked();

		if ((($home->cnt_matches)>0) && (($away->cnt_matches)>0))
		{
			$won1=$home->cnt_won;		
			$won2=$away->cnt_won;
			$loss1=$home->cnt_lost;
			$loss2=$away->cnt_lost;
			$matches1=$home->cnt_matches;
			$matches2=$away->cnt_matches;
			$goalsfor1=$home->sum_team1_result;
			$goalsfor2=$away->sum_team1_result;
			$goalsagainst1=$home->sum_team2_result;
			$goalsagainst2=$away->sum_team2_result;
		
			$ax=(100*$won1/$matches1)+(100*$loss2/$matches2);
			$bx=(100*$won2/$matches2)+(100*$loss1/$matches1);
			$cx=($goalsfor1/$matches1)+($goalsagainst2/$matches2);
			$dx=($goalsfor2/$matches2)+($goalsagainst1/$matches1);
			$ex=$ax+$bx;
			$fx=$cx+$dx;
		
			if (isset($ex) && ($ex>0) && isset($fx) &&($fx>0)) 
			{	 
				$ax=round(10000*$ax/$ex);
				$bx=round(10000*$bx/$ex);
				$cx=round(10000*$cx/$fx);
				$dx=round(10000*$dx/$fx);
		
				$chg1=number_format((($ax+$cx)/200),2,",",".");
				$chg2=number_format((($bx+$dx)/200),2,",",".");	
				$result=array($chg1,$chg2);

				return $result;
			}
		}
	}