Final answer:
The percent change is 2570%.
Step-by-step explanation:
To find the percent change, we can use the percent change formula:
Percent Change = ((New Value - Original Value) / Original Value) * 100
Using the given information, the original value is 1 billion dollars and the new value is 26.7 billion dollars. Plugging these values into the formula, we get:
((26.7 - 1) / 1) * 100 = 2570%
Therefore, the percent change is 2570%.