-89.8% is the change from 892 to 91
Calculation steps:
[( 91 - 892 ) ÷ 892] x 100 = -89.8%
Formula
Percentage change = [(91 - 892) / 892] x 100
Subtract the new number by the original number
91 - 892 = -801
-801 ÷ 892 = -0.897982062780269
-0.897982062780269 x 100 = -89.8%