-89.9% is the change from 832 to 84
Calculation steps:
[( 84 - 832 ) ÷ 832] x 100 = -89.9%
Formula
Percentage change = [(84 - 832) / 832] x 100
Subtract the new number by the original number
84 - 832 = -748
-748 ÷ 832 = -0.8990384615384616
-0.8990384615384616 x 100 = -89.9%