-67.78% is the change from 779 to 251
Calculation steps:
[( 251 - 779 ) ÷ 779] x 100 = -67.78%
Formula
Percentage change = [(251 - 779) / 779] x 100
Subtract the new number by the original number
251 - 779 = -528
-528 ÷ 779 = -0.6777920410783055
-0.6777920410783055 x 100 = -67.78%