my (@numbers) = qw( 0.256 0.255 0.254 );
printf("%0.2f\n", $_) foreach @numbers;

printf("%0.2f\n", 1.255);

##</code><code>##

0.26
0.26
0.25
1.26

##</code><code>##

0.26
0.26
0.25
1.25