255.96% is the change from 109 to 388
Calculation steps:
[( 388 - 109 ) ÷ 109] x 100 = 255.96%
Formula
Percentage change = [(388 - 109) / 109] x 100
Subtract the new number by the original number
388 - 109 = 279
279 ÷ 109 = 2.5596330275229358
2.5596330275229358 x 100 = 255.96%