The amount on 1099-misc is 600$ and my expences for it on schedule C are 425.59. Do I only write 174$ on line 13 of 1040NR or am I better of doing deductions for this in my Itemised deductions-schedule A and writing full amount of 600 as business profit?

Kalimero:

Put the expenses on the Schedule C. Put the $174 on Line 13 of Form 1040NR.

Be sure to attach the Schedule C to the Form 1040NR.