-78.39% is the change from 768 to 166
Calculation steps:
[( 166 - 768 ) ÷ 768] x 100 = -78.39%
Formula
Percentage change = [(166 - 768) / 768] x 100
Subtract the new number by the original number
166 - 768 = -602
-602 ÷ 768 = -0.7838541666666666
-0.7838541666666666 x 100 = -78.39%