Using your code on my system, I get a test failure for 13.25: 
ok 1 - round 1.24 to 1.20
not ok 2 - round 13.25 to 13.30
#   Failed test 'round 13.25 to 13.30'
#   at r2.pl line 12.
#          got: '13.20'
#     expected: '13.30'
ok 3 - round 2.90 to 2.90
ok 4 - round 2.99 to 3.00
ok 5 - round 2.92 to 2.90
ok 6 - round 14 to 14.00
ok 7 - round 1.2345678 to 1.234570
1..7
# Looks like you failed 1 test of 7.

[download]

In reply to Re^2: Rounding over numbers by kevbot
in thread Rounding over numbers by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.