How to get rid of "Designed by" in the theme?
You need to edit the page.tpl.php file and remove the line in the footer:

http://cgit.drupalcode.org/business/tree/templates/page.tpl.php?h=7.x-1.x

Its at the bottom.

  &lt;div id="copyright"&gt;
    &lt;?php if ($footer_copyright): ?&gt;
      &lt;?php print $footer_copyright; ?&gt;
    &lt;?php endif; ?&gt;
    &lt;?php if (theme_get_setting('footer_credits')): ?&gt;
      &lt;span class="credits"&gt;&lt;?php print t('Designed by'); ?&gt;  &lt;a href="http://www.devsaran.com"&gt;Devsaran&lt;/a&gt;.&lt;/span&gt;
    &lt;?php endif; ?&gt;
  &lt;/div&gt;


However, it seems like there is a theme setting you can just uncheck as well, under Admin > Appearance > Business > Settings called 'Footer Credit'.