Live in NJ but work in NY

Hi,

 

I live in New Jersey for the full year and I work in New York for the full year. On my W2, it shows both NY and NJ wages and taxes. 

 

NY State Wage is the same as my Federal Wage however, NJ State Wages is only ~70% of my Federal Wage. Do you know what would that happen? How would this impact the way I file tax for both states?