BW 2020 will inevitably be compared to Red Sparrow, Atomic Blonde and Salt.
Salt (2010) $294 Million WW, RT 62%
Atomic Blonde (2017) $100 Million WW, RT 78%
Red Sparrow (2018) $151 Million WW, RT 45%
Black Widow might very well have a Worldwide total greater than the sum of all three of those movies even with naysayers who question the "need" and timing of Black Widow because it is Post Avengers:Endgame.
RT-wise I don't think Black Widow will be that high and might fall below Atomic Blonde's 78%.