-67.77% is the change from 819 to 264
Calculation steps:
[( 264 - 819 ) ÷ 819] x 100 = -67.77%
Formula
Percentage change = [(264 - 819) / 819] x 100
Subtract the new number by the original number
264 - 819 = -555
-555 ÷ 819 = -0.6776556776556777
-0.6776556776556777 x 100 = -67.77%