Final answer:
To find the percent of decrease from 77.9 to 58.47, subtract the numbers, divide by the original number, and multiply by 100. The percent of decrease is 25.0%.
Step-by-step explanation:
To find the percent of decrease from 77.9 to 58.47, we first need to find the difference between the two numbers. The difference is 77.9 - 58.47 = 19.43. Then, we divide the difference by the original number (77.9) and multiply by 100 to find the percent of decrease. So, the percent of decrease is (19.43 / 77.9) * 100 = 24.98%. Rounded to the nearest tenth of a percent, the answer is 25.0%.
Learn more about Percent of Decrease