Labour productivity using mathematical and statistical technique?

Give reasons for the answer :
1) An employer want to deduct Rs.1121.90p from the monthly gross wages of Rs . 5082.06p drawn by an employee . The amount payable to the employed person 4/73 of the annual earnings of the employee separately levied from contribution paid by an employer to the pension & provident fund and the interest which may have accrued there on.
2) How far it is true the cost of labour output per man hour ( labour productivity ) using mathematical and statistical technique eventually estimate monthly turnover?

The cost of labour output per man hour alone cannot estimate monthly turnover as turnover depends on a variety of factors like material cost, establishment cost, finance cost etc and unless all the input factors are reckoned properly on the sole basis of labour productivity the turnover cannot be estimated.