Requirement $3.$ Cheney$\text{'}$s $2020$ audit of Pierre$$ & Co$.$ was budgeted to take $110$ hours of professional labor time. The actual professional labor time spent on the audit was $125$ hours. Compute the cost of the Pierre$$ & Co$.$ audit using$($a$)$ actual$$ costing, $($b$)$ normal$$ costing, and$($c$)$ the variation from normal costing that uses budgeted rates for direct costs. Explain any differences in the job cost.

Begin by identifying the formulas to calculate the direct and$$ indirect$-$costs under actual costing.