-81.07% is the change from 766 to 145
Calculation steps:
[( 145 - 766 ) ÷ 766] x 100 = -81.07%
Formula
Percentage change = [(145 - 766) / 766] x 100
Subtract the new number by the original number
145 - 766 = -621
-621 ÷ 766 = -0.8107049608355091
-0.8107049608355091 x 100 = -81.07%