-89.79% is the change from 921 to 94
Calculation steps:
[( 94 - 921 ) ÷ 921] x 100 = -89.79%
Formula
Percentage change = [(94 - 921) / 921] x 100
Subtract the new number by the original number
94 - 921 = -827
-827 ÷ 921 = -0.8979370249728555
-0.8979370249728555 x 100 = -89.79%