-0.48% is the change from 838 to 834
Calculation steps:
[( 834 - 838 ) ÷ 838] x 100 = -0.48%
Formula
Percentage change = [(834 - 838) / 838] x 100
Subtract the new number by the original number
834 - 838 = -4
-4 ÷ 838 = -0.00477326968973747
-0.00477326968973747 x 100 = -0.48%