Would also like clarification on favorable or unfavorable

Japan Company produces lamps that require 3 standard hours per unit at an hourly rate of $19.90 per hour. Production of 7, 600 units required 22, 120 hours at an hourly rate of $19.30 per hour, Enter favorable variances as negative numbers. (a) Determine the direct labor rate variance. $ (b) Determine the direct labor time variance. $ (c) Determine the cost variance. $