-51.99% is the change from 879 to 422
Calculation steps:
[( 422 - 879 ) ÷ 879] x 100 = -51.99%
Formula
Percentage change = [(422 - 879) / 879] x 100
Subtract the new number by the original number
422 - 879 = -457
-457 ÷ 879 = -0.5199089874857793
-0.5199089874857793 x 100 = -51.99%