Algebra Help...Is My Answer Correct

The Hansons have reduced the average number of hours they watch television each day from 5.5 hours in March to 2.5 hours in June. Find the rate of change in the average number of hours they watch television each day.

Answer:
5.5 - 2.5 = 3 hours
3/5.5 = 0.545 = 54.5% rate of change

OR


5.5-2.5/5.5=3/5.5=54%

5.5 - 5.5x = 2.5
-5.5x = -3
x = -3/-5.5
x = 54.55% less