{
  "id": "edited-order-payment-shipping-ledger",
  "synthetic": true,
  "function": "difference",
  "scope": [
    "No money is collected or refunded. Tax, duties, international-order eligibility, subscription contracts and external fulfilment apps need separate evidence.",
    "不执行收退款。税费、关税、国际订单资格、订阅合同和外部履约应用需独立证据。"
  ],
  "cases": [
    {
      "args": [
        140,
        100
      ],
      "expected": 40
    },
    {
      "args": [
        80,
        100
      ],
      "expected": -20
    },
    {
      "args": [
        100,
        100
      ],
      "expected": 0
    }
  ]
}