-21.79% is the change from 257 to 201
Calculation steps:
[( 201 - 257 ) ÷ 257] x 100 = -21.79%
Formula
Percentage change = [(201 - 257) / 257] x 100
Subtract the new number by the original number
201 - 257 = -56
-56 ÷ 257 = -0.2178988326848249
-0.2178988326848249 x 100 = -21.79%