Exerclse $2-9($Algo$)$ Compute and Use the Degree of Operating Leverage $[$LO$2-8]$

Engberg Company installs lawn sod in home yards. The company's most recent monthly contribution format income statement follow

$\backslash$table$[[,,$Percent of$],[$Sales$,$Amount,Sales$],[$Variable expenses,$$96,000,190\%$