-72.28% is the change from 819 to 227
Calculation steps:
[( 227 - 819 ) ÷ 819] x 100 = -72.28%
Formula
Percentage change = [(227 - 819) / 819] x 100
Subtract the new number by the original number
227 - 819 = -592
-592 ÷ 819 = -0.7228327228327228
-0.7228327228327228 x 100 = -72.28%