-40.86% is the change from 257 to 152
Calculation steps:
[( 152 - 257 ) ÷ 257] x 100 = -40.86%
Formula
Percentage change = [(152 - 257) / 257] x 100
Subtract the new number by the original number
152 - 257 = -105
-105 ÷ 257 = -0.4085603112840467
-0.4085603112840467 x 100 = -40.86%