-90.84% is the change from 251 to 23
Calculation steps:
[( 23 - 251 ) ÷ 251] x 100 = -90.84%
Formula
Percentage change = [(23 - 251) / 251] x 100
Subtract the new number by the original number
23 - 251 = -228
-228 ÷ 251 = -0.9083665338645418
-0.9083665338645418 x 100 = -90.84%