-37.85% is the change from 251 to 156
Calculation steps:
[( 156 - 251 ) ÷ 251] x 100 = -37.85%
Formula
Percentage change = [(156 - 251) / 251] x 100
Subtract the new number by the original number
156 - 251 = -95
-95 ÷ 251 = -0.3784860557768924
-0.3784860557768924 x 100 = -37.85%