Turkish to English Bus/Financial Accounting

This is on a payroll slip with a figure that varies from month to month related to it - for eg. for June 2014 it was 2.907 and for May 2015 it was 2.6063.

Kur should be exchange rate but these figures do not match Euro or Dollar for that month and it doesn't write döviz kur.

I wondered if İKur could be short for İşkur but that still wouldn't explain the figure.

I would be grateful if anyone has any ideas. I asked two accountant friends and they couldn't help.

Thanks....