TANKTALUS => sub {
    my %copy = %hash;
    @copy{keys %add} = values %add;
  },

##</code><code>##

            Rate      ZAXO      NULL TANKTALUS     JAPHY      BASE
ZAXO      12.3/s        --      -23%      -59%      -59%      -76%
NULL      16.1/s       30%        --      -46%      -47%      -68%
TANKTALUS 29.8/s      142%       85%        --       -2%      -41%
JAPHY     30.4/s      147%       89%        2%        --      -40%
BASE      50.9/s      313%      216%       71%       67%        --

##</code><code>##

            Rate      ZAXO      NULL     JAPHY TANKTALUS      BASE
ZAXO      9.48/s        --      -39%      -55%      -55%      -81%
NULL      15.7/s       65%        --      -26%      -26%      -69%
JAPHY     21.1/s      122%       35%        --       -0%      -59%
TANKTALUS 21.1/s      123%       35%        0%        --      -59%
BASE      51.1/s      439%      226%      142%      142%        --