A companys returns department incurs annual overhead costs of $72,000 and budgets 2,000 returns per year. Management believes it has found a better way to package its products. As a result, the company expects to reduce the number of shipments that are returned due to damage by 5%. This is expected to reduce the departments annual overhead by $12,000. Compute the departments standard overhead rate per return (a) before the sustainability improvement and (b) after the sustainability improvement. Note: Round your answers to 2 decimal places