-34.13% is the change from 879 to 579
Calculation steps:
[( 579 - 879 ) ÷ 879] x 100 = -34.13%
Formula
Percentage change = [(579 - 879) / 879] x 100
Subtract the new number by the original number
579 - 879 = -300
-300 ÷ 879 = -0.3412969283276451
-0.3412969283276451 x 100 = -34.13%