The taxable amount in box 2a is correct. When you take distributions from a non-qualified annuity, any interest or earnings within the annuity will be distributed before the premium or principal amount. It is taxed on the LIFO basis: Last in, First out. Since your $85,000 investment amount grew to $234,000, your $127,000 distribution is all earnings with no return of principal. The "exclusion ratio" comes in to play when you annuitize, or start receiving a stream of guaranteed payments.
There is an exception to the earnings first rule for contributions made to annuity contracts prior to 8/14/82. These contributions are distributed on a first in, first out (FIFO) basis and the owner is not taxed until such contributions are fully recovered. But that would not apply in this case.
If you change the amounts on your 1099-R, it won't agree with the information the IRS has received.
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