Final answer:
The percent decrease for the given values is 80%, 80%, 80%, and 100% respectively.
Step-by-step explanation:
To calculate the percent decrease, we need to find the difference between the original value and the decreased value, divide that by the original value, and then multiply by 100.
Let's find the percent decrease for each given value:
- For 19.2, the percent decrease is ((19.2 - 3.84) / 19.2) * 100 = 80%.
- For 3.84, the percent decrease is ((3.84 - 0.768) / 3.84) * 100 = 80%.
- For 0.768, the percent decrease is ((0.768 - 0.1536) / 0.768) * 100 = 80%.
- For 0.1536, the percent decrease is ((0.1536 - 0) / 0.1536) * 100 = 100%.
So, the percent decrease for the given values is 80%, 80%, 80%, and 100% respectively.