$distance1=$_GET['distance1']?$_GET['distance1']+0:150 ; $pass1=$_GET['pass1']?$_GET['pass1']+0:3 ; $cons1=$_GET['cons1']?$_GET['cons1']+0:8.5 ; $fuel1=$_GET['fuel1']?$_GET['fuel1']+0:1.352 ; $diodia1=$_GET['diodia1']?$_GET['diodia1']+0:0 ; $distance2=$distance1; $diodia2=$diodia1; $pass2=$pass1; $cons2= ($distance1/100 ) * $cons1; $fuel2=$cons2*$fuel1; $costPerPerson=sprintf("%.2f",($fuel2*1.8 + $diodia2 ) / $pass1); ?>