-81.44% is the change from 819 to 152
Calculation steps:
[( 152 - 819 ) ÷ 819] x 100 = -81.44%
Formula
Percentage change = [(152 - 819) / 819] x 100
Subtract the new number by the original number
152 - 819 = -667
-667 ÷ 819 = -0.8144078144078144
-0.8144078144078144 x 100 = -81.44%