-17.49% is the change from 829 to 684
Calculation steps:
[( 684 - 829 ) ÷ 829] x 100 = -17.49%
Formula
Percentage change = [(684 - 829) / 829] x 100
Subtract the new number by the original number
684 - 829 = -145
-145 ÷ 829 = -0.17490952955367914
-0.17490952955367914 x 100 = -17.49%