Retirement tax questions

Can you help on this topic.  My 1099-G 2020 is 200 dollars higher than my actual refund.

 

I did amend both state and federal 2019 returns.  Ended up sending back some of the refund to state and got a refund from the federal where we initially paid before the amendment.

 

The difference is refund state is $2607 but 1099-G is $2916? what causes this offset?

 

Thanks,

Mark