-81.12% is the change from 768 to 145
Calculation steps:
[( 145 - 768 ) ÷ 768] x 100 = -81.12%
Formula
Percentage change = [(145 - 768) / 768] x 100
Subtract the new number by the original number
145 - 768 = -623
-623 ÷ 768 = -0.8111979166666666
-0.8111979166666666 x 100 = -81.12%