Group Calculation for TXIN

9,000 (group limit) ÷ 12,378.62 = 0.72706

1,492.42 (net share for subgroup) × 0.72706 = 1,085.08 (net share for TXIN - billable amount)

1,492.42 − 1,085.08 = 407.34 (group adjustment)