; and (II) (aa) in the case of a refundable single-dose container or single-use package drug that is a single source drug or biological, the amount determined for such drug under subsection (b)(4); or (bb) in the case of a refundable single-dose container or single-use package drug that is a biosimilar biological product, the average sales price determined under subsection (b)(8)(A); exceeds (ii) an amount equal to the applicable percentage (as defined in subparagraph (B)) of the estimated total allowed charges for such drug during the quarter. (B) Applicable percentage defined (i) In general For purposes of subparagraph (A)(ii), the term applicable percentage means— (I) subject to subclause (II), 10 percent