Colin Ltd produces one product, the Col. The standard direct costs for each unit of Col are as follows: 

7 metres of material at $5.75 per metre. 

1.5 hours of direct labour at S5.60 per hour. 

During January 2015, Cohn Ltd budgeted to produce 4400 units of Col but actually produced 5200 units. Production used 6.5 metres of material for each unit at a cost of $5.85 per metre. The total cost for direct labour was $44 330, paid at a rate of $5.50 per hour. 

Required

Calculate the following variances for Colin Ltd for January 2015: 

a. Direct material price variance 

b. Direct material usage variance

c. Direct labour rate variance 

d. Direct labour efficiency variance.