stats_source.clicks_statistic_by(start_date..end_date, :device).tap {|arr| arr.map{|row| row[:max] = arr.max{|a, b| a[:clicks_amount] <=> b[:clicks_amount]}[:clicks_amount]}}.map{|row| row[:clicks_percentage] = 100 * row[:clicks_amount] / row[:max]; row}.each do |row|
  print row
end