-88.71% is the change from 921 to 104
Calculation steps:
[( 104 - 921 ) ÷ 921] x 100 = -88.71%
Formula
Percentage change = [(104 - 921) / 921] x 100
Subtract the new number by the original number
104 - 921 = -817
-817 ÷ 921 = -0.8870792616720955
-0.8870792616720955 x 100 = -88.71%