Answer:
correct option is 0.23
Step-by-step explanation:
given data
sales = $90 million
account A sale = $15 million
account B sale = $3.5 million
account C sale = $1.3 million
account D sale = $0.8 million
solution
we get her first total sale that is
total sale = $15 + $3.5 + $1.3 + $0.8
total sale = $20.6 million
so
four-firm concentration ratio is =
..............1
four-firm concentration ratio is =
four-firm concentration ratio is = 0.228 = 0.23