-18.43% is the change from 879 to 717
Calculation steps:
[( 717 - 879 ) ÷ 879] x 100 = -18.43%
Formula
Percentage change = [(717 - 879) / 879] x 100
Subtract the new number by the original number
717 - 879 = -162
-162 ÷ 879 = -0.18430034129692832
-0.18430034129692832 x 100 = -18.43%