Ferry Chemical uses a standard cost system to account for the costs of its production of Chemical X. Standards are 0.81 gallons of materials at $95 per gallon and 5.0 hours of labor at a standard wage rate of $4.19 During September Ferry Chemical produced 5,600 gallons of Chemical X. Ferry Chemical purchased and used totaled 4,060 gallons at a total cost of $400,920. Payroll totaled $105,516 for 26,430 hours worked. Calculate the following variances: Note: Do not round your calculations. Indicate the effect of the variance by selecting "Favorable", "Unfavorable" or "None" for no effect (i.e.., zero variance) 1. direct materials price variance 2. direct materials quantity variance 3. direct labor rate variance 4. direct labor efficiency variance