Please explain all the steps, thank you!

During March 2014, Toby Tool & Die Company worked on four jobs. A review of direct labor costs reveals the following summary data. Analysis reveals that Job A257 was a reseat job. Job A258 was a rush order that required overtime work at premium rates of pay. Job A259 required a more experienced replacement worker on one shift. Work on Job A26C was done for one day by a new trainee when a regular worker was absent. Prepare a report for the plant supervisor on direct labor cost variances for March