-96.96% is the change from 921 to 28
Calculation steps:
[( 28 - 921 ) ÷ 921] x 100 = -96.96%
Formula
Percentage change = [(28 - 921) / 921] x 100
Subtract the new number by the original number
28 - 921 = -893
-893 ÷ 921 = -0.9695982627578719
-0.9695982627578719 x 100 = -96.96%