0; $sqft = 0; $tailorCost=0; $RollSqft = 1; $sqft = ({27V} * {28V}); $noRolls = ceil($sqft / $RollSqft); if($noRolls< 20) { $noRolls= 20; }_Price = ($noRolls * $RollSqft * $Price );