-0.65% is the change from 927 to 921
Calculation steps:
[( 921 - 927 ) ÷ 927] x 100 = -0.65%
Formula
Percentage change = [(921 - 927) / 927] x 100
Subtract the new number by the original number
921 - 927 = -6
-6 ÷ 927 = -0.006472491909385114
-0.006472491909385114 x 100 = -0.65%