function ticket_price(x)
{
	var cost;
	var sale_price;
	var final_price;
	var operation_cost = parseInt(document.getElementById("operation_cost").value);
	var margin = parseInt(document.getElementById("margin").value);	
	var ticket_no = parseInt(document.getElementById("ticket_no").value);
	
	if ((parseInt(document.getElementById("prize_price").value)).toString() == document.getElementById("prize_price").value.toString()) { // checking for integer
    	var prize_price = parseInt(document.getElementById("prize_price").value);
   	} 
   	else{
	   	 var prize_price = 0;
	   	
   	} 
   	
   	if ((parseInt(document.getElementById("operation_cost").value)).toString() == document.getElementById("operation_cost").value.toString()) { // checking for integer
    	var operation_cost = parseInt(document.getElementById("operation_cost").value);
   	} 
   	else{
	   	 var operation_cost = 0;
	   	
   	} 
   	
   	
   	if ((parseInt(document.getElementById("margin").value)).toString() == document.getElementById("margin").value.toString()) { // checking for integer
    	var margin = parseInt(document.getElementById("margin").value);
   	} 
   	else{
	   	 var margin = 0;
	   	
   	} 
   	
   	
   	if ((parseInt(document.getElementById("ticket_no").value)).toString() == document.getElementById("ticket_no").value.toString()) { // checking for integer
    	var ticket_no = parseInt(document.getElementById("ticket_no").value);
   	} 
   	else{
	   	 var ticket_no = 1;
	   	
   	}   	
   	
	
	cost = operation_cost + prize_price;
	margin = cost * margin / 100;	
	sale_price = cost + margin;	
	final_price = sale_price / ticket_no;	
	final_price = Math.round(final_price*100)/100;	
	document.getElementById("final_price").value = final_price;
}