ker Plastic, Incorporated, manufactures plastic mats to use with rolling office chairs, Its standard cost information for last year ows: ker Plastic had the following actual results for the past year: umber of units produced and sold umber of square feet of plastic used ost of plastic purchased and used umber of labor hours worked irect labor cost ariable overhead cost ixed overhead cost 1,200,00011,100,000$9,990,000302,060$3,110,600$496,000$359,009 juired: culate Parker Plastic's direct materials price and quantity variances. te: Do not round intermediate calculations. Indicote the effect of each variance by selecting "F" for favorable, "U" for avorable, and "None" for no effect (i.e., zero variance)