-1.91% is the change from 838 to 822
Calculation steps:
[( 822 - 838 ) ÷ 838] x 100 = -1.91%
Formula
Percentage change = [(822 - 838) / 838] x 100
Subtract the new number by the original number
822 - 838 = -16
-16 ÷ 838 = -0.01909307875894988
-0.01909307875894988 x 100 = -1.91%