Lewis and Stark is a public accounting firm that offers two primary services, auditing and tax$-$return preparation. A controversy has developed between the partners of the two service lines as to who is contributing the greater amount to the bottom line. The area of contention is the assignment of overhead. The tax partners argue for assigning overhead on the basis of $40\%$ of direct labor dollars, while the audit partners argue for implementing activity$-$based costing. The partners agree to use next year's budgeted data for purposes of analysis and comparison. The following overhead data are collected to develop the comparison.

$\backslash$table$[[,,,,\backslash$table$[[$Use of Cost$],[$Drivers per Service$]]],[$Activity Cost Pools,Cost Drivers,Estimated Overhead,$\backslash$table$[[$Estimated Use of$],[$Cost Drivers$]],$Audit,$Ta$