Subatomic Shirts' standard cost per t-shirt included 0.20 direct labour hours per shirt at $16.00 per hour. Subatomic Shirts actually used 10,350 direct labour hours at a cost of $15.80 per hour to produce 50,000 t-shirts.

a) Calculate the direct labour rate variance: $

b) Is the direct labour rate variance favourable or unfavourable?

c) Calculate the direct labour efficiency variance: $

d) Is the direct labour efficiency variance favourable or unfavourable?

e) Calculate the total direct labour variance: $

f) Is the total direct labour variance favourable or unfavourable?