-1.81% is the change from 829 to 814
Calculation steps:
[( 814 - 829 ) ÷ 829] x 100 = -1.81%
Formula
Percentage change = [(814 - 829) / 829] x 100
Subtract the new number by the original number
814 - 829 = -15
-15 ÷ 829 = -0.018094089264173704
-0.018094089264173704 x 100 = -1.81%