-97.39% is the change from 921 to 24
Calculation steps:
[( 24 - 921 ) ÷ 921] x 100 = -97.39%
Formula
Percentage change = [(24 - 921) / 921] x 100
Subtract the new number by the original number
24 - 921 = -897
-897 ÷ 921 = -0.9739413680781759
-0.9739413680781759 x 100 = -97.39%