Final answer:
The percent of change from 12 inches to 36 inches is calculated using the percent of change formula, which results in a 200% increase.
Step-by-step explanation:
To find the percent of change when going from 12 inches to 36 inches, you would use the formula for percent of change, which is:
Percent Change = ((New Value - Original Value) / Original Value) × 100%
In this case, the original value is 12 inches, and the new value is 36 inches. Plugging these numbers into the formula gives:
Percent Change = ((36 - 12) / 12) × 100%
Percent Change = (24 / 12) × 100%
Percent Change = 2 × 100%
Percent Change = 200%.
Therefore, going from 12 inches to 36 inches represents a 200% increase.