Answer
You had a 10% increase.
After two more times, the pay would be $11.32
Work Step by Step
To find the Percent increase, these are the steps.
8.5+8.35(x/100)=9.35
8.5(x/100) = 9.35-8.5
8.5(x/100) = 0.85
(x/100) = (0.85)/(8/5)
x = (0.1)*(100)
x = 10
Therefore a 10% percent increase.
To find the final pay after two time having a 10% percent increase, these are the steps.
After 1st 10% increase, it would be 1.1(9.35) = 10.29.
After 2nd 10% increase, it would be 1.1(10.29) = 11.32.
Therefore the final pay would be 11.32