-91.92% is the change from 879 to 71
Calculation steps:
[( 71 - 879 ) ÷ 879] x 100 = -91.92%
Formula
Percentage change = [(71 - 879) / 879] x 100
Subtract the new number by the original number
71 - 879 = -808
-808 ÷ 879 = -0.919226393629124
-0.919226393629124 x 100 = -91.92%