At the beginning of this month, Friedman Company established a petty cash fund with the amount of \($10,000.\) At the end of this month, it was found that the balance of this fund was \($490,\) but the documents to support the payments for stamps were lost:

a. Utilities expenses \($4,400

b.\) Office supplies expenses \($1,810

c.\) Taxi and transportation expenses \($2,050

d.\) Stamp expenses?

Assuming that the balance of the petty cash fund is correct, what is the amount for the stamp expenses?