-89.03% is the change from 839 to 92
Calculation steps:
[( 92 - 839 ) ÷ 839] x 100 = -89.03%
Formula
Percentage change = [(92 - 839) / 839] x 100
Subtract the new number by the original number
92 - 839 = -747
-747 ÷ 839 = -0.8903456495828367
-0.8903456495828367 x 100 = -89.03%