Wagetype amount is not calculating correctly a mere difference of Rs. 5

Dear experts,

We have a Conveyance wagetype, which has to be calculated based on number of attended workings days by an employee.

For that we wrote a PCR and getting a difference of Rs. 6/-

The calculation is as follows for an employee.

We maintained the constant for working days as 26 days.

Also maintanined the Conveyance for month as Rs. 1875/-

He has attended for 15 days.

So the calculation is (15/26)*1875 = 1081.73

But the system is calculating and showing it as 1087.50

The mere difference of Rs. 5.70/- only.

Please advice me to resolve the issue.

Regards,

Sairam.