-81.46% is the change from 766 to 142
Calculation steps:
[( 142 - 766 ) ÷ 766] x 100 = -81.46%
Formula
Percentage change = [(142 - 766) / 766] x 100
Subtract the new number by the original number
142 - 766 = -624
-624 ÷ 766 = -0.814621409921671
-0.814621409921671 x 100 = -81.46%