{
  "what": "同一个 Steam 全球成就百分比接口, 相隔一天的两次读数与差值 (API 对 API)。",
  "why": "ZENONIA 1 于 2026-08-31 上架, 拥有者基数仍在快速增长, 百分比的分母因此每天变大。站上按这些数字分了稀有度档位, 所以它们移动多快本身就是结论的一部分。",
  "join_note": "差值只在 Steam API 的内部成就 id 之间计算。**没有**把 id 映射到Community 页的显示名 —— 同日两个来源里 5 条相差超过 1 个百分点 (最大 5.5), 按百分比排序去对齐必然在这些行上错位。",
  "request": {
    "method": "GET",
    "url": "https://api.steampowered.com/ISteamUserStats/GetGlobalAchievementPercentagesForApp/v2/?gameid=4538960",
    "user_agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)"
  },
  "then": {
    "captured": "2026-08-31",
    "file": "03-steam-global-achievement-pct.json"
  },
  "now": {
    "captured": "2026-09-01",
    "file": "live/steam-achievement-percentages.json",
    "http_status": 200,
    "sha256": "3470fe50e6fcbf5cc93d75e2476a382b11045ac6ba489df5440f41338e861bb1"
  },
  "summary": {
    "capturedThen": "2026-08-31",
    "capturedNow": "2026-09-01",
    "total": 44,
    "moved": 44,
    "medianThen": 16.3,
    "medianNow": 2.6,
    "medianAbsMove": 9.4,
    "biggestMove": -21.5,
    "biggestThen": 29.0,
    "biggestNow": 7.5,
    "under10Then": 13,
    "under10Now": 33,
    "sourceGapOver1pt": 5,
    "sourceGapMax": 5.5
  },
  "rows_by_api_id": [
    {
      "id": "SteamAchive_58_1",
      "then": 29.0,
      "now": 7.5,
      "delta": -21.5
    },
    {
      "id": "SteamAchive_42_1",
      "then": 25.4,
      "now": 4.0,
      "delta": -21.4
    },
    {
      "id": "SteamAchive_35_1",
      "then": 29.0,
      "now": 8.3,
      "delta": -20.7
    },
    {
      "id": "SteamAchive_10_1",
      "then": 23.6,
      "now": 6.0,
      "delta": -17.6
    },
    {
      "id": "SteamAchive_14_1",
      "then": 63.6,
      "now": 46.3,
      "delta": -17.3
    },
    {
      "id": "SteamAchive_38_1",
      "then": 18.1,
      "now": 0.8,
      "delta": -17.3
    },
    {
      "id": "SteamAchive_19_1",
      "then": 20.0,
      "now": 3.0,
      "delta": -17.0
    },
    {
      "id": "SteamAchive_43_1",
      "then": 18.1,
      "now": 1.2,
      "delta": -16.9
    },
    {
      "id": "SteamAchive_36_1",
      "then": 20.0,
      "now": 3.5,
      "delta": -16.5
    },
    {
      "id": "SteamAchive_45_1",
      "then": 16.3,
      "now": 0.6,
      "delta": -15.7
    },
    {
      "id": "SteamAchive_3_1",
      "then": 14.5,
      "now": 0.4,
      "delta": -14.1
    },
    {
      "id": "SteamAchive_44_1",
      "then": 14.5,
      "now": 0.6,
      "delta": -13.9
    },
    {
      "id": "SteamAchive_34_1",
      "then": 36.3,
      "now": 22.7,
      "delta": -13.6
    },
    {
      "id": "SteamAchive_40_1",
      "then": 29.0,
      "now": 15.5,
      "delta": -13.5
    },
    {
      "id": "SteamAchive_48_1",
      "then": 16.3,
      "now": 2.8,
      "delta": -13.5
    },
    {
      "id": "SteamAchive_9_1",
      "then": 16.3,
      "now": 3.1,
      "delta": -13.2
    },
    {
      "id": "SteamAchive_53_1",
      "then": 14.5,
      "now": 2.4,
      "delta": -12.1
    },
    {
      "id": "SteamAchive_25_3",
      "then": 18.1,
      "now": 6.7,
      "delta": -11.4
    },
    {
      "id": "SteamAchive_25_1",
      "then": 56.3,
      "now": 45.6,
      "delta": -10.7
    },
    {
      "id": "SteamAchive_24_1",
      "then": 10.9,
      "now": 0.5,
      "delta": -10.4
    },
    {
      "id": "SteamAchive_41_1",
      "then": 12.7,
      "now": 3.2,
      "delta": -9.5
    },
    {
      "id": "SteamAchive_37_1",
      "then": 10.9,
      "now": 1.7,
      "delta": -9.2
    },
    {
      "id": "SteamAchive_8_1",
      "then": 10.9,
      "now": 2.1,
      "delta": -8.8
    },
    {
      "id": "SteamAchive_15_1",
      "then": 9.0,
      "now": 0.4,
      "delta": -8.6
    },
    {
      "id": "SteamAchive_52_1",
      "then": 9.0,
      "now": 1.1,
      "delta": -7.9
    },
    {
      "id": "SteamAchive_51_1",
      "then": 10.9,
      "now": 3.7,
      "delta": -7.2
    },
    {
      "id": "SteamAchive_25_2",
      "then": 38.1,
      "now": 31.2,
      "delta": -6.9
    },
    {
      "id": "SteamAchive_49_1",
      "then": 7.2,
      "now": 1.4,
      "delta": -5.8
    },
    {
      "id": "SteamAchive_1_1",
      "then": 70.9,
      "now": 65.6,
      "delta": -5.3
    },
    {
      "id": "SteamAchive_16_1",
      "then": 5.4,
      "now": 0.2,
      "delta": -5.2
    },
    {
      "id": "SteamAchive_2_1",
      "then": 5.4,
      "now": 0.3,
      "delta": -5.1
    },
    {
      "id": "SteamAchive_29_1",
      "then": 5.4,
      "now": 0.5,
      "delta": -4.9
    },
    {
      "id": "SteamAchive_50_1",
      "then": 3.6,
      "now": 0.0,
      "delta": -3.6
    },
    {
      "id": "SteamAchive_47_1",
      "then": 3.6,
      "now": 0.0,
      "delta": -3.6
    },
    {
      "id": "SteamAchive_57_1",
      "then": 3.6,
      "now": 0.1,
      "delta": -3.5
    },
    {
      "id": "SteamAchive_46_1",
      "then": 3.6,
      "now": 0.1,
      "delta": -3.5
    },
    {
      "id": "SteamAchive_39_1",
      "then": 3.6,
      "now": 0.4,
      "delta": -3.2
    },
    {
      "id": "SteamAchive_5_1",
      "then": 1.8,
      "now": 0.0,
      "delta": -1.8
    },
    {
      "id": "SteamAchive_4_1",
      "then": 1.8,
      "now": 0.3,
      "delta": -1.5
    },
    {
      "id": "SteamAchive_33_1",
      "then": 67.2,
      "now": 67.8,
      "delta": 0.6
    },
    {
      "id": "SteamAchive_56_1",
      "then": 49.0,
      "now": 50.7,
      "delta": 1.7
    },
    {
      "id": "SteamAchive_11_1",
      "then": 52.7,
      "now": 55.8,
      "delta": 3.1
    },
    {
      "id": "SteamAchive_18_1",
      "then": 94.5,
      "now": 100.0,
      "delta": 5.5
    },
    {
      "id": "SteamAchive_7_1",
      "then": 47.2,
      "now": 57.2,
      "delta": 10.0
    }
  ]
}