json.data do
  json.array! @sale_reports do |d|
    json.id d.id
    json.staff d.staff.user.real_name
    json.client d.client
    json.amount d.amount
    json.content d.content.truncate(40)
    json.finish_rate "#{d.finish_rate}%"
    json.level1_score d.level1_score || 0
    json.level2_score d.level2_score || 0
    json.level3_score d.level3_score || 0
    json.updated_at d.updated_at.to_s
    json.weekly d.weekly
    json.created_at d.created_at.to_s
    json.month d.month.strftime("%Y-%m")
  end
end

json.totalRow do
  sum = @sale_reports.inject(0) { |score, i| score + i.finish_rate}
  json.finish_rate ( @sale_reports.size > 0 ? (sum.to_f / @sale_reports.size).round(2).to_s : '0' ) + '%'
end

json.code 0
json.count @sale_reports.total_count