-37.05% is the change from 251 to 158
Calculation steps:
[( 158 - 251 ) ÷ 251] x 100 = -37.05%
Formula
Percentage change = [(158 - 251) / 251] x 100
Subtract the new number by the original number
158 - 251 = -93
-93 ÷ 251 = -0.3705179282868526
-0.3705179282868526 x 100 = -37.05%