-91.97% is the change from 921 to 74
Calculation steps:
[( 74 - 921 ) ÷ 921] x 100 = -91.97%
Formula
Percentage change = [(74 - 921) / 921] x 100
Subtract the new number by the original number
74 - 921 = -847
-847 ÷ 921 = -0.9196525515743756
-0.9196525515743756 x 100 = -91.97%