-96.74% is the change from 829 to 27
Calculation steps:
[( 27 - 829 ) ÷ 829] x 100 = -96.74%
Formula
Percentage change = [(27 - 829) / 829] x 100
Subtract the new number by the original number
27 - 829 = -802
-802 ÷ 829 = -0.9674306393244874
-0.9674306393244874 x 100 = -96.74%