Sorry I wasn't clearer. If you used Ticketmaster or another entity to sell your tickets you should be able to look at your account activity by transaction which will show what you received and what you paid the venue. You won't know what the buyer paid so you have 2 choices, add up what you sold your tickets for, including the fee you paid, from your venue account(s) and subtract from the total reported in the 1099, the difference will be the commission paid by the buyer and for tax purposes a selling expense to you. If you aren't able to access the transactions to sum up what you received, maybe you can pull the info from the debits to your bank account. In either case, multiply what you received by 0.225 and subtract this number from the box 1 number as a selling expense. It will get you close even if not exact.
