the district’s revocation reduction incentive payment is equal to the estimated number of supervisees successfully prevented from being sent to prison, as defined by section 201(b)(4) multiplied by 45 percent of the costs to the Director of the Bureau of Prisons to incarcerate a supervisee who is revoked to prison, as defined in section 201(b)(1). (2) Revocation reduction incentive payments for tier 2 districts For a tier 2 judicial district, its revocation rate shall equal the estimated number of supervisees successfully prevented from being sent to prison, as defined by section 201(b)(4) multiplied by 40 percent of the costs to the Bureau of Prisons to incarcerate in prison a supervisee whose supervision is revoked. (b) Distribution of grants for high-Performing districts (1) Funding reserved for high-performing districts Annually, the Director of the Administrative Office of the United States Courts, in consultation with the Director of the Bureau of Prisons and the United States Sentencing Commission, shall calculate 5 percent of the total savings attributed to those districts that successfully reduce the number of supervisees revoked to prison for the purposes of providing high-performance grants. (2) Eligibility A judicial district is eligible for a high-performance grant if it is a district— (A) with supervisee revocation rates more than 50 percent below the nationwide average in the most recently completed calendar year