$form->{"Z45"} = $form->{"Z43"};
- $form->{"Z53"} = $form->{"Z45"} + $form->{"53"} + $form->{"74"}
+ $form->{"Z53"} = $form->{"Z45"} + $form->{"47"} + $form->{"53"} + $form->{"74"}
+ $form->{"85"} + $form->{"65"};
$form->{"Z62"} = $form->{"Z43"} - $form->{"66"} - $form->{"61"}