-82% is the change from 711 to 128
Calculation steps:
[( 128 - 711 ) ÷ 711] x 100 = -82%
Formula
Percentage change = [(128 - 711) / 711] x 100
Subtract the new number by the original number
128 - 711 = -583
-583 ÷ 711 = -0.819971870604782
-0.819971870604782 x 100 = -82%