-31.12% is the change from 768 to 529
Calculation steps:
[( 529 - 768 ) ÷ 768] x 100 = -31.12%
Formula
Percentage change = [(529 - 768) / 768] x 100
Subtract the new number by the original number
529 - 768 = -239
-239 ÷ 768 = -0.3111979166666667
-0.3111979166666667 x 100 = -31.12%