Answer:
<u> -54.5%</u>
Step-by-step explanation:
You will have to use this formula
When substituted in you have
30-66=-36
-36/66= -0.54 (54 repeating)
Then you have to convert this into a percentage, -54.54(repeating) percent
To the nearest hundredth you would round down to<u> -54.5%</u>.
It is a Decrease because it is negatated.