what is the total commission

Question

Pamela Mello is paid on an incremental commission schedule. She is paid 2.6% on the first $60,000 and 3.4% on any sales over $60,000. If her weekly sales volume was $89,400, what was her total commission?
$

Answer 1

sales=89,400$

part1...2.6% av 60,000=0.026*60,000=1,560

part2...89,400 - 60,000=29,400

3.4% av 29400=999.6

1,560+999.6=2,559.6