Absolute change (AC) refers to the simple difference in the indicator over two periods. that is

and, for Mike:

Whose salary grew more in absolute change? Suzanne's salary.
The relative change (RC) express the absolute change as a pencentage of the value of the indicator in the earlier period:

For Suzanne, we have

and for Mike, we have

In percentage change? For Suzanne is 28.6% and for Mike 28.3%