-0.54% is the change from 921 to 916
Calculation steps:
[( 916 - 921 ) ÷ 921] x 100 = -0.54%
Formula
Percentage change = [(916 - 921) / 921] x 100
Subtract the new number by the original number
916 - 921 = -5
-5 ÷ 921 = -0.0054288816503800215
-0.0054288816503800215 x 100 = -0.54%