[步骤]

关键词权重系数计算逻辑：_数量权重*20% + _出单权重*75% + _出单率权重*5%

Rate = RateOnline*20% + RateOrder*75% + Ratio*5%

Ratio = 8.6666*20% + 0.1818*75% + 0.0019*5%  = 0.309777

[结果]

{
    "_id" : ObjectId("65981ba4d31c6b5c803cb9a9"),
    "UniqueHash" : "8001873-US-9215e121dff7e81c5122e842ce78a676",
    "AddTime" : ISODate("2024-01-05T23:05:13.001+08:00"),
    "KeyWord" : "water pitcher",
    "KeyWordSourceType" : 9,
    "OnlineCount" : 52,
    "OrderCount" : 10,
    "SiteCode" : "US",
    "Sku" : "8001873",
    "UpdateTime" : ISODate("2024-01-06T14:03:20.013+08:00"),
    "Rate" : "8.8503",
    "RateOnline" : "8.6666",
    "RateOrder" : "0.1818",
    "RateTime" : ISODate("2024-01-26T15:44:47.775+08:00"),
    "Ratio" : "0.0019"
},

[期望]