-17.32% is the change from 768 to 635
Calculation steps:
[( 635 - 768 ) ÷ 768] x 100 = -17.32%
Formula
Percentage change = [(635 - 768) / 768] x 100
Subtract the new number by the original number
635 - 768 = -133
-133 ÷ 768 = -0.17317708333333334
-0.17317708333333334 x 100 = -17.32%