-95.22% is the change from 251 to 12
Calculation steps:
[( 12 - 251 ) ÷ 251] x 100 = -95.22%
Formula
Percentage change = [(12 - 251) / 251] x 100
Subtract the new number by the original number
12 - 251 = -239
-239 ÷ 251 = -0.952191235059761
-0.952191235059761 x 100 = -95.22%