Final answer:
To find the percent decrease from 40 thousand to 20 thousand, subtract the new value from the original value, divide by the original value, and multiply by 100. The calculation shows a 50% decrease.
Step-by-step explanation:
The question involves calculating the percent decrease when the value of a quantity decreases from 40 thousand to 20 thousand.
To find the percent decrease, we use the formula:
Percent Decrease = [(Original Value - New Value) / Original Value] × 100%
Plugging in the values gives us:
Percent Decrease = [(40,000 - 20,000) / 40,000] × 100% = [20,000 / 40,000] × 100%
Percent Decrease = 0.5 × 100% = 50%
So, there is a 50% decrease when 40 thousand is reduced to 20 thousand.