Bellingham Company produces a product that requires 10 standard direct labor hours per unit at a standard hourly rate of $17.00 per hour. If 4,900 units used 48,000 hours at an hourly rate of $17.51 per hour, what is the direct labor (a) rate variance, (b) time variance, and (c) cost variance? Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number.