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$[[,$Total,Dirt Bikes,$\backslash$table$[[$Mountain$],[$Bikes$]],$Racing Bikes$],[$Sales$,$$$923,000,$$$270,000,$$$401,000,$$$252,000$ the last requiremint $3$ the columns must be total,dirt bike, moutain bike and racing bikes