-87.18% is the change from 819 to 105
Calculation steps:
[( 105 - 819 ) ÷ 819] x 100 = -87.18%
Formula
Percentage change = [(105 - 819) / 819] x 100
Subtract the new number by the original number
105 - 819 = -714
-714 ÷ 819 = -0.8717948717948718
-0.8717948717948718 x 100 = -87.18%