GMAT Problem Solving (PS) | In 1994, Kenneth’s annual salary was 30 percent higher than it was in

Perhaps an easier way to thing about this is the successive multiplication of percentages. This is a pretty fundamental concept to percentage questions and it's one that I have screwed up about a billion times.

If you have some salary S and you increase it by 10% and then decrease it by 10%, the math looks like this:

S*(1.1)*(0.9) --> this is equal to S*(99/100). This is 99% of the original salary or a1% decrease .

In this question they are giving you the end result and asking what it took
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