Harris Fabrics computes its plantwide predetermined overhead rate annually based on direct labor$-$hours. At the beginning of the year, it estimated $38,000$ direct labor$-$hours would be required for the period's estimated level of production. The company also estimated $$558,000$ of fixed manufacturing overhead cost for the coming period and variable manufacturing overhead of $$4\mathrm{.}00$ per direct labor$-$hour. Harris's actual manufacturing overhead cost for the year was $$786,717$ and its actual total direct labor was $38,500$ hours. Required: Compute the company's plantwide predetermined overhead rate. Note: Round your answer to $2$ decimal places. Predetermined overhead rate per DLH