-77.79% is the change from 860 to 191
Calculation steps:
[( 191 - 860 ) ÷ 860] x 100 = -77.79%
Formula
Percentage change = [(191 - 860) / 860] x 100
Subtract the new number by the original number
191 - 860 = -669
-669 ÷ 860 = -0.7779069767441861
-0.7779069767441861 x 100 = -77.79%