-42.23% is the change from 251 to 145
Calculation steps:
[( 145 - 251 ) ÷ 251] x 100 = -42.23%
Formula
Percentage change = [(145 - 251) / 251] x 100
Subtract the new number by the original number
145 - 251 = -106
-106 ÷ 251 = -0.42231075697211157
-0.42231075697211157 x 100 = -42.23%