Sweatshop has the following details of direct labour used to make tracksuits for July.

(a) Standard: 550 sweatshirts at 2 hours at £5.50 per hour.

(b) Actual production: 500 sweatshirts at 1,050 hours for £5,880.

Required:

Calculate the: 

(i) overall direct labour cost variance 

(ii) direct labour price variance 

(iii) direct labour quantity variance.