-89.05% is the change from 840 to 92
Calculation steps:
[( 92 - 840 ) ÷ 840] x 100 = -89.05%
Formula
Percentage change = [(92 - 840) / 840] x 100
Subtract the new number by the original number
92 - 840 = -748
-748 ÷ 840 = -0.8904761904761904
-0.8904761904761904 x 100 = -89.05%