-65.19% is the change from 879 to 306
Calculation steps:
[( 306 - 879 ) ÷ 879] x 100 = -65.19%
Formula
Percentage change = [(306 - 879) / 879] x 100
Subtract the new number by the original number
306 - 879 = -573
-573 ÷ 879 = -0.6518771331058021
-0.6518771331058021 x 100 = -65.19%