-73.7% is the change from 829 to 218
Calculation steps:
[( 218 - 829 ) ÷ 829] x 100 = -73.7%
Formula
Percentage change = [(218 - 829) / 829] x 100
Subtract the new number by the original number
218 - 829 = -611
-611 ÷ 829 = -0.7370325693606755
-0.7370325693606755 x 100 = -73.7%