Well, it looks like Dark Fate is having just that, a dark fate. It has dropped 63% in its 2nd weekend, an all-time low for the franchise. The lowest drop in the franchise from previous sequels was 61% from Salvation. However, the previous film Genisys dropped only 49%. Below are the DBO totals after their first 10 days.
T3: $90.8M
Salvation: $86.2M
Genisys: $59M
T:DF: $48.5M
The FBO isn't looking good, either. Its best foreign market, China, is dropping much faster than Genisys did. By its 2nd weekend, Genisys was at $77M. While we don't have this weekend's Sunday numbers from China, it looks like T:DF will finish its 2nd weekend $30M+ below Genisys (currently at $40.5M without Sunday.)