I came across an adjustment that affected the Federal refund for my Sched A Client/2022 tax return.

Scenario:  There were 0 errors showing, so I gave the client her final refund result.  Then suddenly, a series of questions appeared and asked to enter 2021 Sched A data.  Questions asked from 2021 were gross income, total Itemized deduction, and Line 5...a-e. After entering all this info, the refund decreased by around $800. 

I tried to backtrack the questions to try to understand the adjustment and explain the difference to my client, but I was unsuccessful. 

Your kind help is greatly appreciated!

Luis Cano