A local salesman receives a base salary of 675 monthly. He Also receives a commission of 11% on all sales over 1900. How Much would he have to sell in a month if he needed to have a monthly income of 3000?

My Work:

1900*.11=209
3000-675=2325
2325/209=11.12440191
1900*11.12440191=21136.36364
...So he would need to sell about 21,136.36 dollars to reach his needed monthly income needs.

I even checked my work, 21,126.36364*.11 equals about 2325, so adding 675 = 3000.
but... it's wrong, and i really don't know why.
Please Help >.<

2 answers

3000 = 675 + .11 (s-1900)

2325 = .11 s - 209

.11 s = 2534

s = 23036.36
Rawr