-40.16% is the change from 879 to 526
Calculation steps:
[( 526 - 879 ) ÷ 879] x 100 = -40.16%
Formula
Percentage change = [(526 - 879) / 879] x 100
Subtract the new number by the original number
526 - 879 = -353
-353 ÷ 879 = -0.40159271899886234
-0.40159271899886234 x 100 = -40.16%