gamma_test.rb

#!/usr/bin/env ruby
# created:    2021-07-01 15:44:57 -0500

$starting_value=1
$ppc = 1.0132
$cm = 1.5

def ppc_first
  value = $starting_value
  (0..100).each { value *= $ppc }

  (0..37).each { value *= $cm }
  puts value
end

def cm_first
  value = $starting_value
  (0..37).each { value *= $cm }

  (0..100).each { value *= $ppc }

  puts value
end

ppc_first
cm_first

out

[20210701 15:52:48|username]$ ./gamma_test.rb
18479113.676401503
18479113.67640149