-28.29% is the change from 357 to 256
Calculation steps:
[( 256 - 357 ) ÷ 357] x 100 = -28.29%
Formula
Percentage change = [(256 - 357) / 357] x 100
Subtract the new number by the original number
256 - 357 = -101
-101 ÷ 357 = -0.28291316526610644
-0.28291316526610644 x 100 = -28.29%