-67.42% is the change from 396 to 129
Calculation steps:
[( 129 - 396 ) ÷ 396] x 100 = -67.42%
Formula
Percentage change = [(129 - 396) / 396] x 100
Subtract the new number by the original number
129 - 396 = -267
-267 ÷ 396 = -0.6742424242424242
-0.6742424242424242 x 100 = -67.42%