-5.91% is the change from 829 to 780
Calculation steps:
[( 780 - 829 ) ÷ 829] x 100 = -5.91%
Formula
Percentage change = [(780 - 829) / 829] x 100
Subtract the new number by the original number
780 - 829 = -49
-49 ÷ 829 = -0.05910735826296743
-0.05910735826296743 x 100 = -5.91%