How do I input a $-negative amount for Box 14 and supplemental statement on the NJ - W2 form? I confirmed with my employer and it is supposed to be a negative amount.Help

How do I input a $-negative amount for Box 14 and supplemental statement on the NJ - W2 form. I confirmed with my employed 10 times, and they told me the amount is a negative number. How do I input this negative amount on the TurboTax. Also, Turbotax support did not help me. Anyone please help me input a negative -$ for box 14 on W2 form please! Thank you!