for $i (1 .. $form->{rowcount}) {
map({ $form->{"${_}_${i}"} = $form->parse_amount(\%myconfig, $form->{"${_}_${i}"})
if ($form->{"${_}_${i}"}) }
for $i (1 .. $form->{rowcount}) {
map({ $form->{"${_}_${i}"} = $form->parse_amount(\%myconfig, $form->{"${_}_${i}"})
if ($form->{"${_}_${i}"}) }