Question 43428
This is kind of hard to explain unless you are good with percents.

He got a 6.2% raise. That means he makes what he used to make (100%) plus the 6.2%.

So now he is making 100% + 6.2% = 106.2% is what he is making now

You want to know 106.2% of what number is $29523.60. 
If equation form, 

106.2% * n = 29523.60             [change percent to decimal: 2 places left]
1.062 * n = 29523.60              so divide by 1.062 on both sides
       n = $27,800    --> this is your answer



Double check. 27800 * 6.2% = 27800 * 0.062 = 1723.60 would be the raise. 
Add that onto 27800 and you get 29523.60.