-7.82% is the change from 921 to 849
Calculation steps:
[( 849 - 921 ) ÷ 921] x 100 = -7.82%
Formula
Percentage change = [(849 - 921) / 921] x 100
Subtract the new number by the original number
849 - 921 = -72
-72 ÷ 921 = -0.0781758957654723
-0.0781758957654723 x 100 = -7.82%