-3.69% is the change from 812 to 782
Calculation steps:
[( 782 - 812 ) ÷ 812] x 100 = -3.69%
Formula
Percentage change = [(782 - 812) / 812] x 100
Subtract the new number by the original number
782 - 812 = -30
-30 ÷ 812 = -0.03694581280788178
-0.03694581280788178 x 100 = -3.69%