288.24% is the change from 102 to 396
Calculation steps:
[( 396 - 102 ) ÷ 102] x 100 = 288.24%
Formula
Percentage change = [(396 - 102) / 102] x 100
Subtract the new number by the original number
396 - 102 = 294
294 ÷ 102 = 2.8823529411764706
2.8823529411764706 x 100 = 288.24%