pt.rb in valvat-0.6.0

- old
+ new

@@ -2,12 +2,10 @@
 
 class Valvat
   module Checksum
     class PT < Base
       def check_digit
-        chk = 11 - figures.reverse.each_with_index.map do |fig, i|
-          fig*(i+2)
-        end.inject(:+).modulo(11)
+        chk = sum_of_figues_for_pt_si
         chk > 9 ? 0 : chk
       end
     end
   end
 end
\ No newline at end of file