Final answer:
The percent of decrease from 800 to 0 is 100%.
Step-by-step explanation:
To find the percent of decrease from 800 to 0, we need to calculate the amount of decrease and then express it as a percentage of the original value.
The amount of decrease is 800 - 0 = 800.
The percent of decrease is then calculated by dividing the amount of decrease by the original value and multiplying by 100:
(800 / 800) * 100 = 100%.
Therefore, the percent of decrease from 800 to 0 is 100%.
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