Firm Sales in $2021$

Sweets & Treats, Inc. $$275,000$

Midwest Candy Co$.$ $$160,000$

Adelberto's Candies $$98,000$

Cora's Confections $$57,000$

All other firms in industry combined $$160,000$

The four$-$firm concentration ratio in this industry is

Question $22$ options:

$0\mathrm{.}94(94$ percent$).$

$0\mathrm{.}21(21$ percent$).$

$0\mathrm{.}41(41$ percent$).$

$0\mathrm{.}79(79$ percent$).$

$0\mathrm{.}58(58$ percent$).$