Question

Leo Corporation pays its employees on a graduated commission scale: 6 percent on 1st $40,000 sales; 7% on sales above $40,000 to $80,000; and 9 percent on sales greater than $80,000. Bernie Kaminsky had sales of $105,000. His commission is:

Answer 1

So according to the question statements 

6% of the $40k and 7$ of the second $40k and 9% ammount of the $80k 

the answer would be 

40000 * 0.06
 + 40000 * 0.07
+  25000 * 0.09
= 270250