3387.5% is the change from 8 to 279
Calculation steps:
[( 279 - 8 ) ÷ 8] x 100 = 3387.5%
Formula
Percentage change = [(279 - 8) / 8] x 100
Subtract the new number by the original number
279 - 8 = 271
271 ÷ 8 = 33.875
33.875 x 100 = 3387.5%
Example