$yen and $prince contain the newline from pressing Enter. Use 

chomp( my $yen = <STDIN> );

[download]

and 

chomp( my $price = <STDIN> );

[download]

to remove any trailing newline.

Ref: chomp

In reply to Re: Output split over two lines by ikegami
in thread Output split over two lines by thevoid

Title:
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