Mackinaw Inc. processes a base chemical into plastic. Standard costs and actual costs for direct materials, direct labor, and factory overhead incurred for the manufacture of $5,600$ units of product were as follows:

$\backslash$table$[[,$Standard Costs,Actual Costs$],[$Direct materials,$7,300lb.$ at $$5\mathrm{.}30,7,200lb.$ at $$5\mathrm{.}20$