Superior Sales Plc is a manufacturing company which produces high quality fans for the export market. Details of four weeks production and the relevant input resources are shown in the Table below:

Week	Output (Units)	Workers	Materials (kg)
1	500	6	45
2	650	7	46
3	750	7	42
4	1,000	7	42

The company has a 40 hours work week and hourly wage rate is $12. Overhead is 1.2 times of total weekly labour costand material cost is $1.2 per kilogram. The standard price per fan is $1,200.

Required:

1. Compute the labour productivity
2. Compute the multifactor productivity
3. Compute the productivity growth for week 2, 3 and 4