-73.28% is the change from 816 to 218
Calculation steps:
[( 218 - 816 ) ÷ 816] x 100 = -73.28%
Formula
Percentage change = [(218 - 816) / 816] x 100
Subtract the new number by the original number
218 - 816 = -598
-598 ÷ 816 = -0.7328431372549019
-0.7328431372549019 x 100 = -73.28%