Amount Charged | Percent Bonus
$0.01 - $1000 | 0.5
$1000 - $3000 | 1.0
$3000 - $6000 | 1.5
$6000 - $10000 | 2.0
At the end of each year, a certain card company pays a bonus to each of its credit card holders based on the amount, up to $10,000, that the card holder charged throughout the year. A 0.5 percent bonus is paid on the first $1000 charged, a 1.0 percent bonus is paid on the next $2000 and so on, as indicated in the table above. What is the maximum annual bonus, in dollars?
Ans = 150.
Some one please break down the soln.
Thanks in advance.