Z Company produces shirts. There has been a surge in shirt sales as a result of an advertising company and so Z Company is paying its staff overtime to build up the inventory levels.

Labor hours per unit	3 hours
Basic wage rate per hour	Tk. 20
Overtime premium	25%
Normal number of labor hours per month	3,40,000 hours

Z Company expects sales of 1,00,000 units in September and wants to have closing inventory at the end of September of 20,000 units. There will be no opening inventory on 1st September.

Calculate the budgeted labor cost.