$dec1 = $dec2 = $dec3 = 0;
$_POST['material_cost'] = price_decimal_format($myrow["material_cost"], $dec1);
$_POST['labour_cost'] = price_decimal_format($myrow["labour_cost"], $dec2);
$dec1 = $dec2 = $dec3 = 0;
$_POST['material_cost'] = price_decimal_format($myrow["material_cost"], $dec1);
$_POST['labour_cost'] = price_decimal_format($myrow["labour_cost"], $dec2);