Perhaps you want the sum of all values under a given 'cost key' ('68-4' in this case).
use strict;
use warnings;
use List::Util qw(sum);
my $VAR1 = {
'153-1' => {
'19-4' => {
'cost' => '6300.00',
'cost2' => '630.00'
},
'135-1' => {
'68-4' => {
'cost' => '300.00',
'cost2' => '130.00'
}
},
'1069-9' => {},
'35-1' => {
'28-4' => {
'cost' => '30.00',
'cost2' => '10.00'
}
},
},
};
my $cost_key = '68-4';
foreach my $temp1 (values %$VAR1) {
foreach my $temp2 (values %$temp1) {
next if !exists $temp2->{$cost_key};
print sum( values(%{$temp2->{$cost_key}}));
}
}
OUTPUT:
430
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