-8.35% is the change from 838 to 768
Calculation steps:
[( 768 - 838 ) ÷ 838] x 100 = -8.35%
Formula
Percentage change = [(768 - 838) / 838] x 100
Subtract the new number by the original number
768 - 838 = -70
-70 ÷ 838 = -0.08353221957040573
-0.08353221957040573 x 100 = -8.35%