7% of 40,000 = 2,800 9% of 40,000 = 3,600 7% of 50,000 = 3,500 9% of 50,000 = 4,500 7% of 60,000 = 4,200 9% of 60,000 =5,400 7% of 70,000 =4,900 9% of 70,000 = 6,300 7% of 80,000 = 5,600 9% of 80,000 = 7,200 7% of 90,000 = 6,300 9% of 90,000 = 8,100
to find the percent you multiply the number by the percents decimal form
for example 9% of 90,000 you do (0.09 x 90,000 = 8,100)