-1.19% is the change from 838 to 828
Calculation steps:
[( 828 - 838 ) ÷ 838] x 100 = -1.19%
Formula
Percentage change = [(828 - 838) / 838] x 100
Subtract the new number by the original number
828 - 838 = -10
-10 ÷ 838 = -0.011933174224343675
-0.011933174224343675 x 100 = -1.19%