-68.13% is the change from 819 to 261
Calculation steps:
[( 261 - 819 ) ÷ 819] x 100 = -68.13%
Formula
Percentage change = [(261 - 819) / 819] x 100
Subtract the new number by the original number
261 - 819 = -558
-558 ÷ 819 = -0.6813186813186813
-0.6813186813186813 x 100 = -68.13%