-29.57% is the change from 257 to 181
Calculation steps:
[( 181 - 257 ) ÷ 257] x 100 = -29.57%
Formula
Percentage change = [(181 - 257) / 257] x 100
Subtract the new number by the original number
181 - 257 = -76
-76 ÷ 257 = -0.29571984435797666
-0.29571984435797666 x 100 = -29.57%