Cairo Productions applies overhead using a combined rate for fixed and variable overhead. The rate is 125 percent of direct labor cost. During the first three months of the current year, actual costs were incurred as follows: Direct Labor Cost Actual Overhead January $360,000 $440,000 February 330,000 420,000 March 340,000 421,000 a. What amount of overhead was applied to production in each of the three months? b. What was the underapplied or overapplied overhead for each of the three months and for the first quarter?