# frozen_string_literal: true
class Valvat
module Checksum
class EE < Base
def check_digit
multipliers = [7, 3, 1, 7, 3, 1, 7, 3]
sum = sum_figures_by do |digit, index|
digit * multipliers[index]
end
((sum / 10.0).ceil * 10).to_i - sum
end
end
end
end