of the net earnings from self-employment which is in excess of the sum of— (i) the excess of— (I) the net earning from self-employment reduced by the excess (if any) of subparagraph (A)(i) over subparagraph (A)(ii), over (II) $250,000, reduced by such contribution and benefit base, plus (ii) the amount of the wages paid to such individual during such taxable year in excess of such contribution and benefit base and not in excess of $250,000