Below does not apply to other example data posted later.
What about doing the comparison after converting the string to integer AFTER removing the decimal point ($x =~ s,\.,, ; $x = int( $x ) ; $x == $y ? ... : ... ;)? Won't that work?
# Uses addition to 0 instead of int() to force conversion to number fr
+om string.
use strict; use warnings;
my @compare = ( [ 1990, '19.90' ],
[ 465, '4.65' ]
);
for my $pair ( @compare )
{
my $from_api = $pair->[1];
$from_api =~ s,\.,, ;
$from_api += 0;
printf "%0.f =?= %0.f => %s\n",
$from_api,
$pair->[0],
( $from_api == $pair->[0]
? 'same' : 'different'
) ;
}