Exerclse $13-2($Algo$)$ Droppling or Retalning a Segment $[$LO$13-2]$

The Regal Cycle Company manufactures three types of bicycles$-$a dirt bike, a mountain bike, and a racing bike. Data on sales and expenses for the past quarter follow:

$\backslash$table$[[,$rotal,birt bikes,Mountain,Racting bikes$],[\backslash$table$[[$Sales$],[$Variable manufacturing and selling expenses$]],\backslash$table$[[$$$930,600$