Can someone help me with retaining the precisions when they are zero?

ie -

$f = 9.00
$z = $f;
print $z; #result in 9 - bad I want 9.00

$fx = 9.25
$z = $fx;
print $z; #result in 9.25 - good

I can but don't want to use a sub like itoa. Is there a better way to
convert to string?

$z=itoa($f);
print $z       #result 9.00
$z=itoa($fx);
print $z       #result 9.25

sub itoa { return sprintf("%.2f", $_[0]); }



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