Did you get a 1099Misc from someone? It wouldn't make up the 750 amount. You had to enter it.
Better review your 1040 and see where it is showing up. Before filing you can preview the 1040 or print the whole returnhttps://ttlc.intuit.com/community/accessing/help/how-do-i-preview-my-turbotax-online-return-before-filing/00/26160
now that im thinking back to it, i think it was when az gave the child rebate for dependants in 2023