-99.76% is the change from 829 to 2
Calculation steps:
[( 2 - 829 ) ÷ 829] x 100 = -99.76%
Formula
Percentage change = [(2 - 829) / 829] x 100
Subtract the new number by the original number
2 - 829 = -827
-827 ÷ 829 = -0.9975874547647768
-0.9975874547647768 x 100 = -99.76%