Three methods are being considered for allocating overhead this year Allocate overhead based on direct professional labour cost Calculate the allocation rate using last years direct professional labour costs of 15400000 and overhead costs of 21714000 Allocate overhead based on direct professional labour cost Calculate the allocation rate using last years direct professional labour costs of 15400000 and overhead costs of 10775000 21714000 less 10939000 in direct costs that are traced this year Al