{
  tag: @tag,
  letters: {
    count: @letter_count,
    postage_cost: @letter_postage_cost,
  },
  warehouse_orders: {
    count: @warehouse_order_count,
    postage_cost: @warehouse_order_postage_cost,
    labor_cost: @warehouse_order_labor_cost,
    contents_cost: @warehouse_order_contents_cost,
    total_cost: @warehouse_order_total_cost,
  },
}
