-36.25% is the change from 251 to 160
Calculation steps:
[( 160 - 251 ) ÷ 251] x 100 = -36.25%
Formula
Percentage change = [(160 - 251) / 251] x 100
Subtract the new number by the original number
160 - 251 = -91
-91 ÷ 251 = -0.36254980079681276
-0.36254980079681276 x 100 = -36.25%