-81.33% is the change from 766 to 143
Calculation steps:
[( 143 - 766 ) ÷ 766] x 100 = -81.33%
Formula
Percentage change = [(143 - 766) / 766] x 100
Subtract the new number by the original number
143 - 766 = -623
-623 ÷ 766 = -0.8133159268929504
-0.8133159268929504 x 100 = -81.33%