-46.22% is the change from 251 to 135
Calculation steps:
[( 135 - 251 ) ÷ 251] x 100 = -46.22%
Formula
Percentage change = [(135 - 251) / 251] x 100
Subtract the new number by the original number
135 - 251 = -116
-116 ÷ 251 = -0.46215139442231074
-0.46215139442231074 x 100 = -46.22%