想问问有没有用天成的包网跑孟加拉的大哥
第一次用天成的包网，感觉他们的 D0 统计口径跟常见的有点不一样，用起来不太习惯。想请教下各位大佬：
KPI 方面大家一般会参考哪些核心指标？
正常留存率（比如 D1、D3、D7）大概在什么区间算合理？
有经验的能不能分享一下数值标准或者普遍的参考线？方便我对照一下当前的数据，看看表现到底是正常还是需要调整。
#KPI
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