-93.28% is the change from 819 to 55
Calculation steps:
[( 55 - 819 ) ÷ 819] x 100 = -93.28%
Formula
Percentage change = [(55 - 819) / 819] x 100
Subtract the new number by the original number
55 - 819 = -764
-764 ÷ 819 = -0.9328449328449329
-0.9328449328449329 x 100 = -93.28%