I am trying to write a formula charging the first 400 tickets $5 each. But as
soon as the 401st is sold, I need it to be $8.

Tickets are not being sold one at a time. This is for a family event, so it
could be 5 tickets at a time.

The current fomulas I have

=IF(A4<=400,(E4+F4)*5+G4*2,(E4+F4)*8+G4*2)

will charge $8 a ticket, if a family of 4 are tickets 398, 399, 400, and
401. I need the first three to be $5 each, and one ticket to be $8.


Where A4 is a cummulative column (A5's formula is =SUM(A4+E5+F5))