Business & farm

Yes, you're right.  Just to make sure, here's what it should look like with made up numbers:
Sales price = $100
Purchase = $70
Original 1099-B shows Cap Gain of $30

Sales Schedule shows Cum Adjustments of ($10)
New basis is $60
Enter $60 under correct cost on the 1099-B
Cap Gain is now $40
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**Note also, I'm not a Tax Preparer/CPA. Just a volunteer, seasoned, TurboTax user.
Use any advice accordingly!