-0.48% is the change from 839 to 835
Calculation steps:
[( 835 - 839 ) ÷ 839] x 100 = -0.48%
Formula
Percentage change = [(835 - 839) / 839] x 100
Subtract the new number by the original number
835 - 839 = -4
-4 ÷ 839 = -0.004767580452920143
-0.004767580452920143 x 100 = -0.48%