drug which has been subject to a price spike percentage equal to or greater than 20 percent, 100 percent. (c) Cumulative price spike tax (1) In general The amount of the cumulative price spike tax shall be equal to the applicable percentage of the cumulative price spike revenue received by the applicable entity on the sale of the taxable prescription drug during the calendar year. (2) Applicable percentage (A) In general For purposes of paragraph (1), the applicable percentage shall be equal to— (i) in the case of a taxable prescription drug which has been subject to a cumulative price spike percentage equal to or greater than the cumulative price increase allowance but less than the first compounded percentage, 50 percent, (ii) in the case of a taxable prescription drug which has been subject to a cumulative price spike percentage equal to or greater than the first compounded percentage but less than the second compounded percentage, 75 percent, and (iii) in the case of a taxable prescription drug which has been subject to a cumulative price spike percentage equal to or greater than the second compounded percentage, 100 percent. (B) Cumulative price spike percentage The cumulative price spike percentage is the percentage (if any) by which— (i) the average price of the taxable prescription drug in commerce for the most recently completed calendar year, exceeds (ii) the average price of such drug in commerce for the base year. (C) Cumulative price increase allowance For purposes of clause (i) of subparagraph (A), the cumulative price increase allowance for any calendar year is the percentage (rounded to the nearest one-tenth of 1 percent) by which the medical care component of the consumer price index for all urban consumers (as published by the Bureau of Labor Statistics) for that year exceeds such component for the base year. (D) Compounded percentages For purposes of subparagraph (A), the first compounded percentage and second compounded percentage shall be determined in accordance with the following table: