> my $end_val = $start_val * (1 + 0.016/12)**120
11733.8581431786
> say $end_val.WHAT
(Num)
>
> my $end_val = $start_val;
10000
> $end_val *= 1 + 0.016/12 for 1..120
Nil
> say $end_val
11733.8581431787
> say $end_val.WHAT
(Num)