-69.32% is the change from 251 to 77
Calculation steps:
[( 77 - 251 ) ÷ 251] x 100 = -69.32%
Formula
Percentage change = [(77 - 251) / 251] x 100
Subtract the new number by the original number
77 - 251 = -174
-174 ÷ 251 = -0.6932270916334662
-0.6932270916334662 x 100 = -69.32%