-4.19% is the change from 812 to 778
Calculation steps:
[( 778 - 812 ) ÷ 812] x 100 = -4.19%
Formula
Percentage change = [(778 - 812) / 812] x 100
Subtract the new number by the original number
778 - 812 = -34
-34 ÷ 812 = -0.04187192118226601
-0.04187192118226601 x 100 = -4.19%