It doesn't work like that, movies like MM doesn't have takers beyond 3000 screens even if solo mass centers and B, C centers would have open to empty houses.
So even in solo it wouldn't have opened any better.
This isn't exactly a clash,both have enough window to perform..
Clash is like Insha allah and Sooryavansham, both are universal appealing movies, where both need 4500 screens to accommodate demand (Inshallah due to it has Salman Khan).
So even in solo it would have wrapped around 30..