-34.36% is the change from 879 to 577
Calculation steps:
[( 577 - 879 ) ÷ 879] x 100 = -34.36%
Formula
Percentage change = [(577 - 879) / 879] x 100
Subtract the new number by the original number
577 - 879 = -302
-302 ÷ 879 = -0.3435722411831627
-0.3435722411831627 x 100 = -34.36%