-78.27% is the change from 879 to 191
Calculation steps:
[( 191 - 879 ) ÷ 879] x 100 = -78.27%
Formula
Percentage change = [(191 - 879) / 879] x 100
Subtract the new number by the original number
191 - 879 = -688
-688 ÷ 879 = -0.782707622298066
-0.782707622298066 x 100 = -78.27%